w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 194

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

17.2 Parallel Port Extension 2FDD
17.3 Four FDD Mode
MOB2/BUSY
HEAD2/ERR
STEP2/SLIN
TRK02/PD1
RWC2/AFD
MOA2/PD6
WE2/SLCT
DSB2/ACK
DSA2/PD7
DCH2/PD4
RDD2/PD3
WP2/PD2
DIR2/INIT
IDX2/PD0
WD2/PE
PD5
STB
W83977ATF
MOB
MOA
DSA
DSB
Parallel Port Extension 2FDD Connection Diagram
13
25
12
24
11
23
10
22
21
20
19
18
17
16
15
14
9
8
7
6
5
4
3
2
1
PRINTER PORT
JP13
G1
A1
B1
G2
A2
B2
74LS139
- 186 -
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
W83977ATF/W83977ATG
7407(2)
HEAD2
TRK02
DSB2
MOA2
DCH2
RDD2
WP2
WE2
WD2
STEP2
DIR2
MOB2
IDX2
RWC2
DSA2
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
EXT FDC
JP 13A
DSA
DSB
DSC
DSD
MOA
MOB
MOC
MOD
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1