參數(shù)資料
型號(hào)： PI7C7300
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)： 32/109頁(yè)
文件大小： 779K
代理商： PI7C7300
PI7C7300A
3-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 32 OF 109
09/25/03 Revision 1.09
!
Decodes the device number and drives the bit pattern specified in Table 4-6 on
S1_AD[31:16] or S2_AD[31:16] for the purpose of asserting the device’s IDSEL
signal.
!
!
Sets S1_AD[15:11] or S2_AD[15:11] to 0.
Leaves unchanged the function number and register number fields.
PI7C7300A asserts a unique address line based on the device number. These address
lines may be used as secondary bus IDSEL signals. The mapping of the address lines
depends on the device number in the Type 1 address bits P_AD[15:11]. Table 4-6
presents the mapping that PI7C7300A uses.
Table 4-6 DEVICE NUMBER TO IDSEL S1_AD OR S2_AD PIN MAPPING
Device Number
P_AD[15:11]
Secondary
S2_AD[31:16]
0000 0000 0000 0001
0000 0000 0000 0010
0000 0000 0000 0100
0000 0000 0000 1000
0000 0000 0001 0000
0000 0000 0010 0000
0000 0000 0100 0000
0000 0000 1000 0000
0000 0001 0000 0000
0000 0010 0000 0000
0000 0100 0000 0000
0000 1000 0000 0000
0001 0000 0000 0000
0010 0000 0000 0000
0100 0000 0000 0000
1000 0000 0000 0000
0000 0000 0000 0000
Generate special cycle (P_AD[7:2] = 00h)
0000 0000 0000 0000 (P_AD[7:2] = 00h)
IDSEL
S1_AD[31:16]
or
S1_AD
S2_AD
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
-
-
or
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
Ah
Bh
Ch
Dh
Eh
Fh
10h – 1Eh
1Fh
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000 – 11110
11111
PI7C7300A can assert up to 16 unique address lines to be used as IDSEL signals for up
to 16 devices on the secondary bus, for device numbers ranging from 0 through 15.
Because of electrical loading constraints of the PCI bus, more than 16 IDSEL signals
should not be necessary. However, if device numbers greater than 15 are desired, some
external method of generating IDSEL lines must be used, and no upper address bits are
then asserted. The configuration transaction is still translated and passed from the
primary bus to the secondary bus. If no IDSEL pin is asserted to a secondary device, the
transaction ends in a master abort.
PI7C7300A forwards Type 1 to Type 0 configuration read or write transactions as
delayed transactions. Type 1 to Type 0 configuration read or write transactions are
limited to a single 32-bit data transfer.
4.8.3
TYPE 1 TO TYPE 1 FORWARDING
Type 1 to Type 1 transaction forwarding provides a hierarchical configuration
mechanism when two or more levels of PCI-to-PCI bridges are used.
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PDF描述
PI7C7300A 3-PORT PCI-to-PCI BRIDGE
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PI7C8140A 2 PORT PCI TO PCI BRIDGE PLX PCI 6140 COMPARISON
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PI7C7300A 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:3-PORT PCI-to-PCI BRIDGE
PI7C7300AEVB-3 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
PI7C7300ANA 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
PI7C7300ANAE 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3 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
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
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