GET https://dev.normadoc.fr/_partial/cart/add-item?productId=8915&template=%40SyliusShop%2FProduct%2FShow%2F_addToCart.html.twig

Response
200 OK
IP
216.73.217.61
Profiled on
Token
65f7e0

Forms

  • sylius_add_to_cart
    • cartItem
    • _token

sylius_add_to_cart

Form type: 
"Sylius\Bundle\CoreBundle\Form\Type\Order\AddToCartType"

Errors

This form has no errors.

Default Data

Property Value
Model Format same as normalized format
Normalized Format 
Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#113605
  -cart: App\Entity\Order\Order {#13330 …}
  -cartItem: App\Entity\Order\OrderItem {#113593
    #id: null
    #order: null
    #quantity: 1
    #unitPrice: 0
    #originalUnitPrice: 0
    #total: 0
    #immutable: false
    #units: Doctrine\Common\Collections\ArrayCollection {#113617 …}
    #unitsTotal: 0
    #adjustments: Doctrine\Common\Collections\ArrayCollection {#113618 …}
    #adjustmentsTotal: 0
    #version: 1
    #variant: App\Entity\Product\ProductVariant {#8099
      #id: 2744
      #code: "IEEE00001268PDF"
      #product: App\Entity\Product\Product {#7310
        #id: 8915
        #code: "IEEE00001268"
        #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
        #variants: Doctrine\ORM\PersistentCollection {#7743 …}
        #options: Doctrine\ORM\PersistentCollection {#7915
          #collection: Doctrine\Common\Collections\ArrayCollection {#7917 …}
          #initialized: true
          -snapshot: [ …4]
          -owner: App\Entity\Product\Product {#7310}
          -association: [ …21]
          -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
          -backRefFieldName: null
          -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#198846 …}
          -isDirty: false
        }
        #associations: Doctrine\ORM\PersistentCollection {#7899 …}
        #createdAt: DateTime @1751037816 {#7274
          date: 2025-06-27 17:23:36.0 Europe/Paris (+02:00)
        }
        #updatedAt: DateTime @1754606304 {#7322
          date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
        }
        #enabled: true
        #translations: Doctrine\ORM\PersistentCollection {#7921 …}
        #translationsCache: [
          "en_US" => App\Entity\Product\ProductTranslation {#7920
            #locale: "en_US"
            #translatable: App\Entity\Product\Product {#7310}
            #id: 30669
            #name: "IEEE 896.1:1987"
            #slug: "ieee-896-1-1987-ieee00001268-240567"
            #description: """
              New IEEE Standard - Superseded.<br />\n
              This document provides a level of specification sufficient to design modules that are functionally, operationally, electrically, and mechanically compatible. Additional documents are necessary only to promote a higher degree of system level compatibility in manufacturers’ products.<br />\n
              \t\t\t\t<br />\n
              This IEEE standard specifies the functional, electrical, and mechanical requirements for a set of signal lines that constitute a backplane bus, and for the interfacing<br />\n
              of boards connected to that bus. The bus provides the means for the transfer of binary digital information between boards over a single backplane. The number of physical modules is restricted to 24 due to electrical and mechanical constraints, even though slot addressing allows up to 31 modules. The modules may contain any combination of<br />\n
              one or more processors and immediate peripherals such as memory, peripheral, and communication controllers. Figure 1 shows a block diagram of a typical board.<br />\n
              %o connector pins are allocated for a serial bus, but the provision of such a bus is optional. The purpose of providing a serial bus would be to increase the degree of<br />\n
              fault tolerance and survivability of the system. In any high integrity system an alternate control path is required in order to prevent major system faults and<br />\n
              allow, at least partially, orderly operation in the event of a component failure associated with the parallel bus. A serial bus is the most cost-effective way of<br />\n
              providing such an alternate control path. The definition of the serial bus is outside the scope of this standard. It is anticipated that a common serial bus protocol will<br />\n
              be developed within the IEEE P1394 Working Group that will be applicable to all future parallel bus standards. Protocols are specified for the allocation of bus time to modules needing to conduct transactions with other modules over the bus. However, the standard does not lay down mandatory priority rules for modules to use when competing for use of the bus. These are considered the responsibility and privilege of the system implementer. The standard includes a full set of signaling rules to be followed by all modules in the distributed control acquisition process leading to bus mastership (Section 6). The standard also gives a full set of signaling rules for all modules participating in a bus transaction (Section 7).
              """
            #metaKeywords: null
            #metaDescription: null
            #shortDescription: "IEEE Standard Backplane Bus Specifications for Multiprocessor Architectures: Futurebus+(R)"
            -notes: "Superseded"
          }
        ]
        #currentLocale: "en_US"
        #currentTranslation: null
        #fallbackLocale: "en_US"
        #variantSelectionMethod: "match"
        #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
        #channels: Doctrine\ORM\PersistentCollection {#7627 …}
        #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
        #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
        #averageRating: 0.0
        #images: Doctrine\ORM\PersistentCollection {#7644 …}
        -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
        -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
        -apiLastModifiedAt: DateTime @1754517600 {#7317
          date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
        }
        -lastUpdatedAt: DateTime @1578006000 {#7292
          date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
        }
        -author: ""
        -publishedAt: DateTime @586044000 {#7318
          date: 1988-07-28 00:00:00.0 Europe/Paris (+02:00)
        }
        -releasedAt: null
        -confirmedAt: null
        -canceledAt: null
        -edition: null
        -coreDocument: "896.1"
        -bookCollection: ""
        -pageCount: 64
        -documents: Doctrine\ORM\PersistentCollection {#7464 …}
        -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
      }
      #optionValues: Doctrine\ORM\PersistentCollection {#8315 …}
      #position: 0
      #createdAt: DateTime @1751041132 {#7283
        date: 2025-06-27 18:18:52.0 Europe/Paris (+02:00)
      }
      #updatedAt: DateTime @1755611955 {#8116
        date: 2025-08-19 15:59:15.0 Europe/Paris (+02:00)
      }
      #enabled: true
      #translations: Doctrine\ORM\PersistentCollection {#8259 …}
      #translationsCache: [
        "en_US" => App\Entity\Product\ProductVariantTranslation {#93321
          #locale: "en_US"
          #translatable: App\Entity\Product\ProductVariant {#8099}
          #id: 2762
          #name: null
          -shortDescription: null
          -description: null
          -notes: null
          -shippingInformation: "Instant download"
        }
      ]
      #currentLocale: "en_US"
      #currentTranslation: null
      #fallbackLocale: "en_US"
      #version: 8
      #onHold: 0
      #onHand: 0
      #tracked: false
      #weight: 0.0
      #width: null
      #height: null
      #depth: null
      #taxCategory: Proxies\__CG__\App\Entity\Taxation\TaxCategory {#8131 …}
      #shippingCategory: null
      #channelPricings: Doctrine\ORM\PersistentCollection {#8293 …}
      #shippingRequired: true
      #images: Doctrine\ORM\PersistentCollection {#8290 …}
      -apiLastModifiedAt: DateTime @1753740000 {#8098
        date: 2025-07-29 00:00:00.0 Europe/Paris (+02:00)
      }
      -publishedAt: null
      -isbn: "978-0-7381-4262-3"
      -ean: "9780738142623"
      -numberOfUsers: 1
      -physicalProduct: false
      -downloadableImmediately: true
      -downloadable: true
      -drmViewerUrl: "https://online-viewer.normadoc.com/UmWFVF"
      -sellable: true
      -documents: Doctrine\ORM\PersistentCollection {#8127 …}
      -drmTokens: Doctrine\ORM\PersistentCollection {#8119 …}
      -enabledForSubscribers: true
      -currentAreaContext: null
    }
    #productName: null
    #variantName: null
  }
}
View Format same as normalized format

Submitted Data

This form was not submitted.

Passed Options

Option Passed Value Resolved Value
data 
Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#113605
  -cart: App\Entity\Order\Order {#13330 …}
  -cartItem: App\Entity\Order\OrderItem {#113593
    #id: null
    #order: null
    #quantity: 1
    #unitPrice: 0
    #originalUnitPrice: 0
    #total: 0
    #immutable: false
    #units: Doctrine\Common\Collections\ArrayCollection {#113617 …}
    #unitsTotal: 0
    #adjustments: Doctrine\Common\Collections\ArrayCollection {#113618 …}
    #adjustmentsTotal: 0
    #version: 1
    #variant: App\Entity\Product\ProductVariant {#8099
      #id: 2744
      #code: "IEEE00001268PDF"
      #product: App\Entity\Product\Product {#7310
        #id: 8915
        #code: "IEEE00001268"
        #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
        #variants: Doctrine\ORM\PersistentCollection {#7743 …}
        #options: Doctrine\ORM\PersistentCollection {#7915
          #collection: Doctrine\Common\Collections\ArrayCollection {#7917 …}
          #initialized: true
          -snapshot: [ …4]
          -owner: App\Entity\Product\Product {#7310}
          -association: [ …21]
          -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
          -backRefFieldName: null
          -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#198846 …}
          -isDirty: false
        }
        #associations: Doctrine\ORM\PersistentCollection {#7899 …}
        #createdAt: DateTime @1751037816 {#7274
          date: 2025-06-27 17:23:36.0 Europe/Paris (+02:00)
        }
        #updatedAt: DateTime @1754606304 {#7322
          date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
        }
        #enabled: true
        #translations: Doctrine\ORM\PersistentCollection {#7921 …}
        #translationsCache: [
          "en_US" => App\Entity\Product\ProductTranslation {#7920
            #locale: "en_US"
            #translatable: App\Entity\Product\Product {#7310}
            #id: 30669
            #name: "IEEE 896.1:1987"
            #slug: "ieee-896-1-1987-ieee00001268-240567"
            #description: """
              New IEEE Standard - Superseded.<br />\n
              This document provides a level of specification sufficient to design modules that are functionally, operationally, electrically, and mechanically compatible. Additional documents are necessary only to promote a higher degree of system level compatibility in manufacturers’ products.<br />\n
              \t\t\t\t<br />\n
              This IEEE standard specifies the functional, electrical, and mechanical requirements for a set of signal lines that constitute a backplane bus, and for the interfacing<br />\n
              of boards connected to that bus. The bus provides the means for the transfer of binary digital information between boards over a single backplane. The number of physical modules is restricted to 24 due to electrical and mechanical constraints, even though slot addressing allows up to 31 modules. The modules may contain any combination of<br />\n
              one or more processors and immediate peripherals such as memory, peripheral, and communication controllers. Figure 1 shows a block diagram of a typical board.<br />\n
              %o connector pins are allocated for a serial bus, but the provision of such a bus is optional. The purpose of providing a serial bus would be to increase the degree of<br />\n
              fault tolerance and survivability of the system. In any high integrity system an alternate control path is required in order to prevent major system faults and<br />\n
              allow, at least partially, orderly operation in the event of a component failure associated with the parallel bus. A serial bus is the most cost-effective way of<br />\n
              providing such an alternate control path. The definition of the serial bus is outside the scope of this standard. It is anticipated that a common serial bus protocol will<br />\n
              be developed within the IEEE P1394 Working Group that will be applicable to all future parallel bus standards. Protocols are specified for the allocation of bus time to modules needing to conduct transactions with other modules over the bus. However, the standard does not lay down mandatory priority rules for modules to use when competing for use of the bus. These are considered the responsibility and privilege of the system implementer. The standard includes a full set of signaling rules to be followed by all modules in the distributed control acquisition process leading to bus mastership (Section 6). The standard also gives a full set of signaling rules for all modules participating in a bus transaction (Section 7).
              """
            #metaKeywords: null
            #metaDescription: null
            #shortDescription: "IEEE Standard Backplane Bus Specifications for Multiprocessor Architectures: Futurebus+(R)"
            -notes: "Superseded"
          }
        ]
        #currentLocale: "en_US"
        #currentTranslation: null
        #fallbackLocale: "en_US"
        #variantSelectionMethod: "match"
        #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
        #channels: Doctrine\ORM\PersistentCollection {#7627 …}
        #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
        #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
        #averageRating: 0.0
        #images: Doctrine\ORM\PersistentCollection {#7644 …}
        -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
        -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
        -apiLastModifiedAt: DateTime @1754517600 {#7317
          date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
        }
        -lastUpdatedAt: DateTime @1578006000 {#7292
          date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
        }
        -author: ""
        -publishedAt: DateTime @586044000 {#7318
          date: 1988-07-28 00:00:00.0 Europe/Paris (+02:00)
        }
        -releasedAt: null
        -confirmedAt: null
        -canceledAt: null
        -edition: null
        -coreDocument: "896.1"
        -bookCollection: ""
        -pageCount: 64
        -documents: Doctrine\ORM\PersistentCollection {#7464 …}
        -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
      }
      #optionValues: Doctrine\ORM\PersistentCollection {#8315 …}
      #position: 0
      #createdAt: DateTime @1751041132 {#7283
        date: 2025-06-27 18:18:52.0 Europe/Paris (+02:00)
      }
      #updatedAt: DateTime @1755611955 {#8116
        date: 2025-08-19 15:59:15.0 Europe/Paris (+02:00)
      }
      #enabled: true
      #translations: Doctrine\ORM\PersistentCollection {#8259 …}
      #translationsCache: [
        "en_US" => App\Entity\Product\ProductVariantTranslation {#93321
          #locale: "en_US"
          #translatable: App\Entity\Product\ProductVariant {#8099}
          #id: 2762
          #name: null
          -shortDescription: null
          -description: null
          -notes: null
          -shippingInformation: "Instant download"
        }
      ]
      #currentLocale: "en_US"
      #currentTranslation: null
      #fallbackLocale: "en_US"
      #version: 8
      #onHold: 0
      #onHand: 0
      #tracked: false
      #weight: 0.0
      #width: null
      #height: null
      #depth: null
      #taxCategory: Proxies\__CG__\App\Entity\Taxation\TaxCategory {#8131 …}
      #shippingCategory: null
      #channelPricings: Doctrine\ORM\PersistentCollection {#8293 …}
      #shippingRequired: true
      #images: Doctrine\ORM\PersistentCollection {#8290 …}
      -apiLastModifiedAt: DateTime @1753740000 {#8098
        date: 2025-07-29 00:00:00.0 Europe/Paris (+02:00)
      }
      -publishedAt: null
      -isbn: "978-0-7381-4262-3"
      -ean: "9780738142623"
      -numberOfUsers: 1
      -physicalProduct: false
      -downloadableImmediately: true
      -downloadable: true
      -drmViewerUrl: "https://online-viewer.normadoc.com/UmWFVF"
      -sellable: true
      -documents: Doctrine\ORM\PersistentCollection {#8127 …}
      -drmTokens: Doctrine\ORM\PersistentCollection {#8119 …}
      -enabledForSubscribers: true
      -currentAreaContext: null
    }
    #productName: null
    #variantName: null
  }
}
 same as passed value
product 
App\Entity\Product\Product {#7310
  #id: 8915
  #code: "IEEE00001268"
  #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
  #variants: Doctrine\ORM\PersistentCollection {#7743 …}
  #options: Doctrine\ORM\PersistentCollection {#7915
    #collection: Doctrine\Common\Collections\ArrayCollection {#7917 …}
    #initialized: true
    -snapshot: [ …4]
    -owner: App\Entity\Product\Product {#7310}
    -association: [ …21]
    -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
    -backRefFieldName: null
    -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#198846 …}
    -isDirty: false
  }
  #associations: Doctrine\ORM\PersistentCollection {#7899 …}
  #createdAt: DateTime @1751037816 {#7274
    date: 2025-06-27 17:23:36.0 Europe/Paris (+02:00)
  }
  #updatedAt: DateTime @1754606304 {#7322
    date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
  }
  #enabled: true
  #translations: Doctrine\ORM\PersistentCollection {#7921 …}
  #translationsCache: [
    "en_US" => App\Entity\Product\ProductTranslation {#7920
      #locale: "en_US"
      #translatable: App\Entity\Product\Product {#7310}
      #id: 30669
      #name: "IEEE 896.1:1987"
      #slug: "ieee-896-1-1987-ieee00001268-240567"
      #description: """
        New IEEE Standard - Superseded.<br />\n
        This document provides a level of specification sufficient to design modules that are functionally, operationally, electrically, and mechanically compatible. Additional documents are necessary only to promote a higher degree of system level compatibility in manufacturers’ products.<br />\n
        \t\t\t\t<br />\n
        This IEEE standard specifies the functional, electrical, and mechanical requirements for a set of signal lines that constitute a backplane bus, and for the interfacing<br />\n
        of boards connected to that bus. The bus provides the means for the transfer of binary digital information between boards over a single backplane. The number of physical modules is restricted to 24 due to electrical and mechanical constraints, even though slot addressing allows up to 31 modules. The modules may contain any combination of<br />\n
        one or more processors and immediate peripherals such as memory, peripheral, and communication controllers. Figure 1 shows a block diagram of a typical board.<br />\n
        %o connector pins are allocated for a serial bus, but the provision of such a bus is optional. The purpose of providing a serial bus would be to increase the degree of<br />\n
        fault tolerance and survivability of the system. In any high integrity system an alternate control path is required in order to prevent major system faults and<br />\n
        allow, at least partially, orderly operation in the event of a component failure associated with the parallel bus. A serial bus is the most cost-effective way of<br />\n
        providing such an alternate control path. The definition of the serial bus is outside the scope of this standard. It is anticipated that a common serial bus protocol will<br />\n
        be developed within the IEEE P1394 Working Group that will be applicable to all future parallel bus standards. Protocols are specified for the allocation of bus time to modules needing to conduct transactions with other modules over the bus. However, the standard does not lay down mandatory priority rules for modules to use when competing for use of the bus. These are considered the responsibility and privilege of the system implementer. The standard includes a full set of signaling rules to be followed by all modules in the distributed control acquisition process leading to bus mastership (Section 6). The standard also gives a full set of signaling rules for all modules participating in a bus transaction (Section 7).
        """
      #metaKeywords: null
      #metaDescription: null
      #shortDescription: "IEEE Standard Backplane Bus Specifications for Multiprocessor Architectures: Futurebus+(R)"
      -notes: "Superseded"
    }
  ]
  #currentLocale: "en_US"
  #currentTranslation: null
  #fallbackLocale: "en_US"
  #variantSelectionMethod: "match"
  #productTaxons: Doctrine\ORM\PersistentCollection {#7533 …}
  #channels: Doctrine\ORM\PersistentCollection {#7627 …}
  #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7311 …}
  #reviews: Doctrine\ORM\PersistentCollection {#7612 …}
  #averageRating: 0.0
  #images: Doctrine\ORM\PersistentCollection {#7644 …}
  -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7325 …}
  -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7389 …}
  -apiLastModifiedAt: DateTime @1754517600 {#7317
    date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00)
  }
  -lastUpdatedAt: DateTime @1578006000 {#7292
    date: 2020-01-03 00:00:00.0 Europe/Paris (+01:00)
  }
  -author: ""
  -publishedAt: DateTime @586044000 {#7318
    date: 1988-07-28 00:00:00.0 Europe/Paris (+02:00)
  }
  -releasedAt: null
  -confirmedAt: null
  -canceledAt: null
  -edition: null
  -coreDocument: "896.1"
  -bookCollection: ""
  -pageCount: 64
  -documents: Doctrine\ORM\PersistentCollection {#7464 …}
  -favorites: Doctrine\ORM\PersistentCollection {#7499 …}
}
 same as passed value

Resolved Options

Option Value
action 
""
allow_extra_fields 
false
allow_file_upload 
false
attr 
[]
attr_translation_parameters 
[]
auto_initialize 
true
block_name 
null
block_prefix 
null
by_reference 
true
compound 
true
constraints 
[]
csrf_field_name 
"_token"
csrf_message 
"The CSRF token is invalid. Please try to resubmit the form."
csrf_protection 
true
csrf_token_id 
null
csrf_token_manager 
Symfony\Component\Security\Csrf\CsrfTokenManager {#113625
  -generator: Symfony\Component\Security\Csrf\TokenGenerator\UriSafeTokenGenerator {#113626 …}
  -storage: Symfony\Component\Security\Csrf\TokenStorage\SessionTokenStorage {#113627 …}
  -namespace: Closure() {#113629 …}
}
data 
Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#113605
  -cart: App\Entity\Order\Order {#13330 …}
  -cartItem: App\Entity\Order\OrderItem {#113593
    #id: null
    #order: null
    #quantity: 1
    #unitPrice: 0
    #originalUnitPrice: 0
    #total: 0
    #immutable: false
    #units: Doctrine\Common\Collections\ArrayCollection {#113617 …}
    #unitsTotal: 0
    #adjustments: Doctrine\Common\Collections\ArrayCollection {#113618 …}
    #adjustmentsTotal: 0
    #version: 1
    #variant: App\Entity\Product\ProductVariant {#8099
      #id: 2744
      #code: "IEEE00001268PDF"
      #product: App\Entity\Product\Product {#7310
        #id: 8915
        #code: "IEEE00001268"
        #attributes: Doctrine\ORM\PersistentCollection {#7700 …}
        #variants: Doctrine\ORM\PersistentCollection {#7743 …}
        #options: Doctrine\ORM\PersistentCollection {#7915
          #collection: Doctrine\Common\Collections\ArrayCollection {#7917 …}
          #initialized: true
          -snapshot: [ …4]
          -owner: App\Entity\Product\Product {#7310}
          -association: [ …21]
          -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …}
          -backRefFieldName: null
          -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#198846 …}
          -isDirty: false
        }
        #associations: Doctrine\ORM\PersistentCollection {#7899 …}
        #createdAt: DateTime @1751037816 {#7274
          date: 2025-06-27 17:23:36.0 Europe/Paris (+02:00)
        }
        #updatedAt: DateTime @1754606304 {#7322
          date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00)
        }
        #enabled: true
        #translations: Doctrine\ORM\PersistentCollection {#7921 …}
        #translationsCache: [
          "en_US" => App\Entity\Product\ProductTranslation {#7920
            #locale: "en_US"
            #translatable: App\Entity\Product\Product {#7310}
            #id: 30669
            #name: "IEEE 896.1:1987"
            #slug: "ieee-896-1-1987-ieee00001268-240567"
            #description: """
              New IEEE Standard - Superseded.<br />\n
              This document provides a level of specification sufficient to design modules that are functionally, operationally, electrically, and mechanically compatible. Additional documents are necessary only to promote a higher degree of system level compatibility in manufacturers’ products.<br />\n
              \t\t\t\t<br />\n
              This IEEE standard specifies the functional, electrical, and mechanical requirements for a set of signal lines that constitute a backplane bus, and for the interfacing<br />\n
              of boards connected to that bus. The bus provides the means for the transfer of binary digital information between boards over a single backplane. The number of physical modules is restricted to 24 due to electrical and mechanical constraints, even though slot addressing allows up to 31 modules. The modules may contain any combination of<br />\n
              one or more processors and immediate peripherals such as memory, peripheral, and communication controllers. Figure 1 shows a block diagram of a typical board.<br />\n
              %o connector pins are allocated for a serial bus, but the provision of such a bus is optional. The purpose of providing a serial bus would be to increase the degree of<br />\n
              fault tolerance and survivability of the system. In any high integrity system an alternate control path is required in order to prevent major system faults and<br />\n
              allow, at least partially, orderly operation in the event of a component failure associated with the parallel bus. A serial bus is the most cost-effective way of<br />\n
              providing such an alternate control path. The definition of the serial bus is outside the scope of this standard. It is anticipated that a common serial bus protocol will<br />\n
              be developed within the IEEE P1394 Working Group that will be applicable to all future parallel bus standards. Protocols are specified for the allocation of bus time to modules needing to conduct transactions with other modules over the bus. However, the standard does not lay down mandatory priority rules for modules to use when competing for use of the bus. These are considered the responsibility and privilege of the system implementer. The standard includes a full set of signaling rules to be followed by all modules in the distributed control acquisition process leading to bus mastership (Section 6). The standard also gives a full set of signaling rules for all modules participating in a bus transaction (Section 7).
              """
            #metaKeywords: null
            #metaDescription: null
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