22
ASUS CD-R/RW Drive User’s Manual
V. ADDITIONAL INFORMATION
V.Ad
ditional
Inf
o
Interf
ace
Pin
Ta
ble
Interface Pin Table
Signal
Pin Number
Signal
Pin Number
RESET
01
DMA REQUEST
21
GROUND
02
GROUND
22
–DB(7)
03
I/O WRITE
23
–DB(8)
04
GROUND
24
–DB(6)
05
I/O READ
25
–DB(9)
06
GROUND
26
–DB(5)
07
I/O READY
27
–DB(10)
08
SPSYNC:CSEL
28
–DB(4)
09
DMACK–
29
–DB(11)
10
GROUND
30
–DB(3)
11
INTRQ
31
–DB(12)
12
16 BIT I/O
32
–DB(2)
13
DA1
33
–DB(13)
14
PDIAG–
34
–DB(1)
15
DA0
35
–DB(14)
16
DA2
36
–DB(0)
17
CHIP SELECT 0
37
–DB(15)
18
CHIP SELECT 1
38
GROUND
19
DASP–
39
Removed
20
GROUND
40