參數(shù)資料
型號(hào): GL811E
廠商: Electronic Theatre Controls, Inc.
英文描述: USB 2.0 to ATA / ATAPI Bridge Controller
中文描述: USB 2.0至的ATA / ATAPI控制器橋
文件頁數(shù): 19/35頁
文件大?。?/td> 1290K
代理商: GL811E
GL811E USB 2.0 to ATA/ATAPI Bridge Controller
2000-2004 Genesys Logic Inc. - All rights reserved.
Page 19
Register transfer timing parameters
Timing (ns)
t
0
Cycle time
2000
t
1
Address valid to DIOR_/ DIOW_ setup
1000
t
2
DIOR_/ DIOW_ pulse width 8-bit
300
t
2i
DIOR_/ DIOW_ recovery time
900
t
3
DIOW_ data setup
80
t
4
DIOW_ data hold
40
t
5
DIOR_ data setup
-
t
6
DIOR_ data hold
-
t
6Z
DIOR_ data tristate
-
t
9
DIOR_/ DIOW_ to address valid hold
Read Data Valid to IORDY active
(if IORDY initially low after t
A
)
IORDY Setup time
900
t
RD
t
A
-
t
B
IORDY Pulse Width
-
t
C
IORDY assertion to release (max)
-
6.4.2 Multiword DMA data transfer
Register transfer timing parameters
Timing (ns)
t
0
Cycle time
120
t
D
DIOR_/ DIOW_ asserted pulse width
80
t
E
DIOR_ data access
-
t
F
DIOR_ data hold
-
t
G
DIOR_/ DIOW_ data setup
40
t
H
DIOW_ data hold
18
t
I
DMACK to DIOR_/ DIOW_ setup
18
t
J
DIOR_/ DIOW_ to DMACK hold
20
t
KR
DIOR_ negated pulse width
36
t
KW
DIOW_ negated pulse width
36
t
LR
DIOR_ to DMARQ delay
-
t
LW
DIOW_ to DMARQ delay
-
t
M
CS(1:0) (max) valid to DIOR_/ DIOW_
36
t
N
CS(1:0) hold
18
t
Z
DMACK_ to read data released
-
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