W83977EG-AW Datasheet, PDF (139/142 Pages) Nuvotem Talema – These products are not designed for use in life support appliances

W83977EF-AW/W83977EG-AW
15.2 Parallel Port Extension 2FDD
W E 2 #/S L C T
W D 2#/P E
M O B 2# /B U S Y
DSB2#/ACK
DSA2#/PD7
M O A 2# /P D 6
PD5
DCH2#/PD4
RDD2#/PD3
STEP2#/SLIN#
W P2#/PD2
DIR2#/INIT#
TRK02#/PD1#
HEAD2#/ERR#
IDX2#/PD0
R W C 2#/A FD #
STB#
JP13
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
DCH2#
HEAD2#
RDD2#
WP2#
TRK02#
W E2#
WD2#
STEP2#
DIR2#
MOB2#
DSA2#
DSB2#
MOA2#
IDX2#
RWC2#
JP 13A
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
EXT FDC
PRINTER PORT
Parallel Port Extension 2FDD Connection Diagram
15.3 Four FDD Mode
W83977EF
DSA#
DSB#
MOA#
MOB#
74LS139
G1
1Y0
A1
1Y1
B1
1Y2
1Y3
2Y0
2Y1
G2
2Y2
A2
2Y3
B2
7407(2)
DSA#
DSB#
DSC#
DSD#
MOA#
MOB#
MOC#
MOD#
-137-
Publication Release Date: Apr. 2006
Revision 1.2