參數(shù)資料
型號(hào): PI7C7300ANA
廠商: Pericom Semiconductor Corp.
英文描述: 3-PORT PCI-to-PCI BRIDGE
中文描述: 3端口PCI至PCI橋
文件頁(yè)數(shù): 68/109頁(yè)
文件大?。?/td> 779K
代理商: PI7C7300ANA
PI7C7300A
3-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 68 OF 109
09/25/03 Revision 1.09
are derived from P_CLK. The secondary clock edges are delayed from P_CLK edges by
a minimum of 0ns. This is the rule for using secondary clocks:
!
Each secondary clock output is limited to no more than one load.
12
RESET
This chapter describes the primary interface, secondary interface, and chip reset
mechanisms.
12.1
PRIMARY INTERFACE RESET
PI7C7300A has a reset input, P_RESET#. When P_RESET# is asserted, the following
events occur:
!
PI7C7300A immediately 3-states all primary and secondary PCI interface signals.
!
PI7C7300A performs a chip reset.
!
P_RESET# asserting and de-asserting edges can be asynchronous to P_CLK and
S_CLK. PI7C7300A is not accessible during P_RESET#. After P_RESET# is de-
asserted, PI7C7300A remains inaccessible for 2
25
PCI clocks (T
rhfa
, page 128 of the PCI
Local Bus Specification Rev 2.2) before the first configuration transaction can be
accepted.
Registers that have default values are reset.
12.2
SECONDARY INTERFACE RESET
PI7C7300A is responsible for driving the secondary bus reset signals, S1_RESET# and
S2_RESET#. PI7C7300A asserts S1_RESET# or S2_RESET# when any of the
following conditions is met:
!
Signal P_RESET# is asserted.
Signal S1_RESET# or S2_RESET# remains
asserted as long as P_RESET# is asserted and does not de-assert until P_RESET# is
de-asserted.
!
The secondary reset bit in the bridge control register is set.
Signal S1_RESET#
or S2_RESET# remains asserted until a configuration write operation clears the
secondary reset bit.
!
S1_RESET# or S2_RESET# pin is asserted.
When S1_RESET# or S2_RESET# is
asserted, PI7C7300A immediately 3-states all the secondary PCI interface signals
associated with the Secondary S1 or S2 port. The S1_RESET# or S2_RESET# in
asserting and de-asserting edges can be asynchronous to P_CLK.
When S1_RESET# or S2_RESET# is asserted, all secondary PCI interface control
signals, including the secondary grant outputs, are immediately 3-stated. Signals S1_AD,
S1_CBE[3:0]#, S1_PAR (S2_AD, S2_CBE[3:0]#, S2_PAR) are driven low for the
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參數(shù)描述
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PI7C7300ANA-E 制造商:Pericom Semiconductor Corporation 功能描述:PCI-to-PCI Bridge 272-Pin BGA 制造商:Pericom Semiconductor Corporation 功能描述:PCI to PCI Bridge 272-Pin BGA
PI7C7300DNAE 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PCI -to -PCI Bridge 3 Port RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
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