參數(shù)資料
型號： UPD720130
廠商： NEC Corp.
英文描述： USB2.0 to IDE Bridge
中文描述： USB2.0轉IDE橋
文件頁數(shù)： 26/44頁
文件大?。?/td> 316K
代理商： UPD720130
Data Sheet S16302EJ3V0DS
26
μ
PD720130
IDE Interface Block
PIO mode
Parameter
Symbol
Mode 0
Mode 1
Mode 2
Mode 3
Mode 4
Unit
Cycle time (min.)
t
0
600
383
240
180
120
ns
Address setup time (min.)
t
1
70
50
30
30
25
ns
16 bits DIOR/DIOW pulse width (min.)
t
2
165
125
100
80
70
ns
8 bits DIOR/DIOW pulse width (min.)
290
290
290
80
70
ns
DIOR/DIOW recovery time (min.)
t
2i
70
25
ns
DIOW data setup time (min.)
t
3
60
45
30
30
20
ns
DIOW data hold time (min.)
t
4
30
20
15
10
10
ns
DIOR data setup time (min.)
t
5
50
35
20
20
20
ns
DIOR data hold time (min.)
t
6
5
5
5
5
5
ns
DIOR 3-state delay time (max.)
t
6Z
30
30
30
30
30
ns
Address hold time (min.)
t
9
20
15
10
10
10
ns
IORDY read data valid time (min.)
Note
t
RD
0
0
0
0
0
ns
IORDY setup time (min.)
Note
t
A
35
35
35
35
35
ns
IORDY pulse width (max.)
Note
t
B
1250
1250
1250
1250
1250
ns
IORDY Inactive to Hi-Z time (max.)
Note
t
C
5
5
5
5
5
ns
Note
IORDY is an option in mode 0 - 2. IORDY is essential in modes 3 and 4.
Multi Word DMA mode
Parameter
Symbol
Mode 0
Mode 1
Mode 2
Unit
Cycle time (min.)
t
0
480
150
120
ns
DIOR/DIOW pulse width (min.)
t
D
215
80
70
ns
DIOR data access time (max.)
t
E
150
60
50
ns
DIOR data hold time (min.)
t
F
5
5
5
ns
DIOR data setup time (min.)
t
Gr
100
30
20
ns
DIOW data setup time (min.)
t
Gw
100
30
20
ns
DIOW data hold time (min.)
t
H
20
15
10
ns
DMACK setup time (min.)
t
I
0
0
0
ns
DMACK hold time (min.)
t
J
20
5
5
ns
DIOR negate pulse width (min.)
t
Kr
50
50
25
ns
DIOW negate pulse width (min.)
t
Kw
215
50
25
ns
DIOR-DMARQ delay time (max.)
t
Lr
120
40
35
ns
DIOW-DMARQ delay time (max.)
t
Lw
40
40
35
ns
DMACK 3-state delay time (max.)
t
Z
20
25
25
ns
CS setup time (min.)
t
M
50
30
25
ns
CS hold time (min.)
t
N
15
10
10
ns
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