參數(shù)資料
型號： 21555-AA
英文描述： Controller Miscellaneous - Datasheet Reference
中文描述： 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù)： 7/30頁
文件大小： 485K
代理商： 21555-AA
Non-Transparent PPB
Datasheet
7
Table 1.
21555 and PPB Feature Comparison
Feature
21555
PCI-to-PCI Bridge
Transaction
forwarding
Adheres to PPB ordering rules.
Adheres to PPB ordering rules.
Uses posted writes and delayed
transactions.
Uses posted writes and delayed transactions.
Adheres to PPB transaction error and
parity error guidelines, although some
errors may be reported differently.
Adheres to PPB transaction error and parity
error guidelines.
Address decoding
Base address registers are used to
define independent downstream and
upstream forwarding windows.
PPB base and limit address registers are
used to define downstream forwarding
windows.
Inverse decoding is only used for
upstream transactions above the
4 GB boundary.
Inverse decoding for upstream forwarding.
Address
translation
Supported for both memory and I/O
transactions.
No translation, a flat address model is
assumed.
Configuration
Downstream devices are not visible
to host.
Downstream devices are visible to host.
Does not require hierarchical
configuration code (Type 0
configuration header).
Requires hierarchical configuration code
(Type 1 configuration header).
Does not respond to Type 1
configuration transactions.
Forwards and converts Type 1 configuration
transactions.
Supports configuration access from
the secondary bus.
Implements separate set of
configuration registers for the
secondary interface.
Does not support configuration access from
the secondary bus. Same set of
configuration registers is used to control both
primary and secondary interfaces.
Run-time resources
Includes features such as doorbell
interrupts, I2O message unit, and so
on, that must be managed by the
device driver.
Typically has only configuration registers; no
device driver is required.
Clocks
Generates secondary bus clock
output.
Generates one or more secondary bus clock
outputs.
Asynchronous secondary clock input
is also supported.
Secondary bus
central functions
Implements secondary bus arbiter.
This function can be disabled.
Implements secondary bus arbiter.
Drives secondary bus AD, C/BE#,
and PAR during reset. This function
can be disabled.
Drives secondary bus AD, C/BE#, and PAR
during reset.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
21556 制造商:Weidmuller 功能描述: 制造商:Schneider Electric 功能描述:MINIATURE CIRCUIT BREAKER 240/415V 10A
2155634-1 功能描述:DIES, AMPOWER 1/0 AWG 制造商:te connectivity amp connectors 系列:* 零件狀態(tài):新產(chǎn)品 標(biāo)準(zhǔn)包裝:1
215570-4 功能描述:集管和線殼 PBC 04P VERT RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector
215570-6 功能描述:集管和線殼 PBC 06P VERT RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector
215570-8 功能描述:集管和線殼 PBC 08P VERT RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector
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