參數(shù)資料
型號: AMD-640
廠商: Advanced Micro Devices, Inc.
英文描述: 64-Bit Socket 7 Interface, Integrated Write back Cache Controller, System Memory Controller, and PCI Bus Controller.(64位系統(tǒng)控制器(包括高速緩沖存儲器控制器,系統(tǒng)存儲器控制器和PCI總線控制器))
中文描述: 64位Socket 7的接口,集成寫回高速緩沖存儲器控制器,系統(tǒng)內(nèi)存控制器和PCI總線控制器。(64位系統(tǒng)控制器(包括高速緩沖存儲器控制器,系統(tǒng)存儲器控制器和的PCI總線控制器))
文件頁數(shù): 147/159頁
文件大?。?/td> 1900K
代理商: AMD-640
9-6
Switching Characteristics
AMD-640 System Controller Data Sheet
21090C/0—June 1997
Preliminary Information
9.4
PCI Interface Timing
All of the following timings are relative to PCLK.
Table 9-5.
PCI Interface Timing
Symbol
Parameter Description
Preliminary Data
Figure
Comments
Min
7 ns
12 ns
Max
t
su
AD[31:0] setup time
PREQ#, REQ[3:0]# setup time
Setup time for
FRAME#
TRDY#
IRDY#
RESET#
AD[31:0] hold time
Hold time for
FRAME#
TRDY#
IRDY#
PREQ#
AD[31:0] Valid Delay
(address phase)
AD[31:0] valid delay
(data phase)
Valid delay for
FRAME#
TRDY#
IRDY#
GNT[3:0]#
PGNT# valid delay
Float delay for
FRAME#
TRDY#
IRDY#
RESET# pulse width
9-2
9-2
STOP#
DEVSEL#
C/BE[3:0]#
7 ns
9-2
t
h
0 ns
9-2
STOP#
DEVSEL#
C/BE[3:0]#
REQ[3:0]#
0 ns
9-2
t
vd
2 ns
11 ns
9-2
Pad 12 (note 1)
2 ns
11 ns
9-2
Pad 12 (note 1)
STOP#
DEVSEL#
C/BE[3:0]#
2 ns
11 ns
9-2
Pad 13 (note 1)
2 ns
12 ns
9-2
t
fd
STOP#
DEVSEL#
C/BE[3:0]#
28 ns
9-2
(note 1)
t
pw
t
lat
Notes:
2 clks
9-2
REQ# to GNT# latency
3 clks
9-2
1. Measurements are taken with no load for t
min
, 50 pF for t
max.
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