- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368020 > PI7C21P100 (Pericom Semiconductor Corp.) 2-PORT PCI-X BRIDGE PDF資料下載
參數(shù)資料
| 型號(hào)： | PI7C21P100 |
| 廠商： | Pericom Semiconductor Corp. |
| 英文描述： | 2-PORT PCI-X BRIDGE |
| 中文描述： | 2端口PCI - X橋接 |
| 文件頁數(shù)： | 30/77頁 |
| 文件大小： | 603K |
| 代理商： | PI7C21P100 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁當(dāng)前第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁
PI7C21P100
2-PORT PCI-X BRIDGE
ADVANCE INFORMATION
Page 30 of 77
June 10, 2005 Revision 1.06
The register number is found in both Type 0 and Type 1 formats and gives the DWORD
address of the configuration register to be accessed. The function number is also included in
both Type 0 and Type 1 formats and indicates which function of a multifunction device is to
be accessed. For single-function devices, this value is not decoded. The addresses of Type 1
configuration transaction include a 5-bit field designating the device number that identifies
the device on the target PCI bus that is to be accessed. In addition, the bus number in Type 1
transactions specifies the PCI bus to which the transaction is targeted.
4.4.1
TYPE 0 ACCESS TO PI7C21P100
The configuration space is accessed by a Type 0 configuration transaction. The configuration
space can be accessed from the primary or secondary interface. S_IDSEL should be tied LOW
if access is not required from the secondary interface.
On the primary interface, PI7C21P100 responds to a Type 0 configuration transaction by
accepting the transaction when the following conditions are met during the address phase:
P_CBE[3:0]# indicates a configuration write or configuration read transaction
The two lowest address bits on P_AD[1:0] are 00
P_IDSEL is asserted
Bit[2] offset 44h (Miscellaneous Control Register) is 0
On the secondary interface, PI7C21P100 responds to a Type 0 configuration transaction by
accepting the transaction when the following conditions are met during the address phase:
S_CBE[3:0]# indicates a configuration write or configuration read transaction
The two lowest address bits on S_AD[1:0] are 00
S_IDSEL is asserted
The function number is not decoded since the bridge is a single-function device. All
configuration transactions to the bridge are handled as DWORD operations.
4.4.2
TYPE 1 TO TYPE 0 CONVERSION
Type 1 configuration transactions are used specifically for device configuration in a
hierarchical PCI/PCI-X bus system. A bridge is the only type of device that should respond to
a Type 1 configuration command. Type 1 configuration commands are used when the
configuration access is intended for a PCI/PCI-X device that resides on a bus other than the
one where the Type 1 transaction is generated.
PI7C21P100 performs a Type 1 to Type 0 translation when the Type 1 transaction
is generated on the primary interface and is intended for a device attached directly to the
secondary interface. PI7C21P100 must convert the configuration command to a Type 0
format so that the secondary bus device can respond to it. Type 1 to Type 0 translations are
performed only in the downstream direction.
PI7C21P100 responds to a Type 1 configuration transaction and translates it into a Type 0
transaction on the secondary interface when the following conditions are met during the
address phase:
The lowest two address bits on P_AD[1:0] are 01b.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PI7C21P100NH | 2-PORT PCI-X BRIDGE |
| PI7C7100BNA | PCI Bus Interface/Controller |
| PI7C7100 | 3-Port PCI Bridge |
| PI7C7100CNA | 3-Port PCI Bridge |
| PI7C7300 | 3-PORT PCI-to-PCI BRIDGE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI7C21P100B | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:2-PORT PCI-X TO PCI-X BRIDGE |
| PI7C21P100BEVB | 功能描述:界面開發(fā)工具 3 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PI7C21P100BNH | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:2-PORT PCI-X TO PCI-X BRIDGE |
| PI7C21P100BNHE | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PCI-X to PCI-XBridge 2 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 |
| PI7C21P100EVB | 功能描述:界面開發(fā)工具 3 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。