參數(shù)資料
型號(hào)： PI7C8150AMAE
廠商： Pericom
文件頁(yè)數(shù)： 81/111頁(yè)
文件大?。?/td> 0K
描述： IC PCI-PCI BRIDGE 2PORT 208-FQFP
標(biāo)準(zhǔn)包裝： 24
系列： *
應(yīng)用： *
接口： *
電源電壓： *
封裝/外殼： 208-BFQFP
供應(yīng)商設(shè)備封裝： 208-FQFP（28x28）
包裝： 管件
安裝類(lèi)型： 表面貼裝
PI7C8150A
2-PORT PCI-TO-PCI BRIDGE
Page 71 of 111
APRIL 2006 – Revision 1.1
An external shift register should be used to load and shift the data. The GPIO pins are used
for shift register control and serial data input. Table 10-1 shows the operation of the GPIO
pins.
Table 10-1. GPIO Operation
GPIO Pin
Operation
GPIO[0]
Shift register clock output at 33MHz max frequency
GPIO[1]
Not used
GPIO[2]
Shift register control
0: Load
1: Shift
GPIO[3]
Not used
The data is input through the dedicated input signal, MSK_IN.
The shift register circuitry is not necessary for correct operation of PI7C8150A. The shift
register can be eliminated, and MSK_IN can be tied LOW to enable all secondary clock
outputs or tied HIGH to force all secondary clock outputs HIGH. Table 10-2 shows the
format of the serial stream.
Table 10-2. GPIO Serial Data Format
Bit
Description
S_CLKOUT
[1:0]
Slot 0 PRSNT#[1:0] or device 0
0
[3:2]
Slot 1 PRSNT#[1:0] or device 1
1
[5:4]
Slot 2 PRSNT#[1:0] or device 2
2
[7:6]
Slot 3 PRSNT#[1:0] or device 3
3
[8]
Device 4
4
[9]
Device 5
5
[10]
Device 6
6
[11]
Device 7
7
[12]
Device 8
8
[13]
PI7C8150A S_CLKIN
9
[14]
Reserved
NA
[15]
Reserved
NA
The first 8 bits contain the PRSNT#[1:0] signal values for four slots, and these bits control
the S_CLKOUT[3:0] outputs. If one or both of the PRSNT#[1:0] signals are 0, that
indicates that a card is present in the slot and therefore the secondary clock for that slot is
not masked. If these clocks are connected to devices and not to slots, one or both of the bits
should be tied low to enable the clock.
The next 5 bits are the clock mask for devices; each bit enables or disables the clock for
one device. These bits control the S_CLKOUT[8:4] outputs: 0 enables the clock, and 1
disables the clock.
Bit 13 is the clock enable bit for S_CLKOUT[9], which is connected to PI7C8150A’s
S_CLKIN input.
If desired, the assignment of S_CLKOUT outputs to slots, devices, and PI7C8150A’s
S_CLKIN input can be rearranged from the assignment shown here. However, it is
important that the serial data stream format match the assignment of S_CLKOUT.
The 8 least significant bits are connected to the PRSNT# pins for the slots. The next 5 bits
are tied high to disable their respective secondary clocks because those clocks are not
06-0057
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PI7C8150AMAE-33 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 2 Port PCI Bridge 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
PI7C8150AND 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:2-PORT PCI-to-PCI BRIDGE
PI7C8150AND-33 制造商:Pericom Semiconductor Corporation 功能描述:PCI-TO-PCI BRIDGE 256BGA - Rail/Tube
PI7C8150ANDE 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 2 Port PCI Bridge 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
PI7C8150B 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:PCI Bridge | Asynchronous 2-Port PCI Bridge
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