參數(shù)資料
型號: PLI9080
廠商: Electronic Theatre Controls, Inc.
英文描述: PCI I/O ACCELERATOR
中文描述: 的PCI I / O加速器
文件頁數(shù): 122/133頁
文件大?。?/td> 883K
代理商: PLI9080
SECTION 8
PCI 9080
TIMING DIAGRAMS
PLX Technology, Inc., 1997
Page 114
Version 0.93
A
A + 4
01
10
1
1
BE=A1,0=00
00
01
10
1
1
0-7
8-15
16-23
24-31
0-7
8-15
16-23
24-31
0ns
50ns
100n
150n
200ns
250ns
300ns
350ns
400ns
450ns
500ns
LCLK
LHOLD
LHOLDA
ADS#
BLAST#
LA[31:0]
LBE[3.:0]=A[1:0]
LD[7:0]
READYI#
(no wait states, 8-bit bus, burst enabled)
Timing Diagram 8-17. (C Mode) DMA or Direct Slave 2 Lword Burst Write to 8 Bit Local Bus
ALL ZERO
D0
D1
D2
D3
<--- PCI9060 DRIVES BUS
A
A+4
A+8
A+12
0ns
100ns
200ns
300ns
400ns
500ns
600ns
LCLK
LHOLD
LHOLDA
ADS#
BLAST#
LBE[3:0]#
LW/R#
LA[31:2]
LD[31:0]
DT/R#
DEN#
READYI#
(no wait states, 32-bit bus)
First Address A are bits [31:4] of the next descriptors pointer register
D0: PCI Start Address, D1: Local Start Address, D2: Transfer Count (bytes), D3: Next Descriptor Pointer
Timing Diagram 8-18. (C Mode) PCI 9080 Read of DMA Chaining Parameters from Local Bus
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