W83977ATF Datasheet, PDF (189/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
TABLE 5-1-2 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
HOST
CONNECTOR
1
2
PIN NUMBER OF
W83977ATF
36
31
PIN
ATTRIBUTE
O
I/O
SPP
nSTB
PD0
PIN
ATTRIBUTE
---
I
3
30
I/O
PD1
I
4
29
I/O
PD2
I
5
28
I/O
PD3
I
6
27
I/O
PD4
I
7
26
I/O
PD5
---
8
24
I/O
PD6
OD
9
23
I/O
PD7
OD
10
22
I
nACK
OD
11
21
12
19
I
BUSY
OD
I
PE
OD
13
18
I
SLCT
OD
14
35
O
nAFD
OD
15
34
I
nERR
OD
16
33
O
nINIT
OD
17
32
O
nSLIN
OD
EXT2FDD
---
INDEX 2
TRAK 02
WP2
RDATA 2
DSKCHG2
---
MOA 2
DSA 2
DSB2
MOB2
WD2
WE2
RWC2
HEAD2
DIR2
STEP2
PIN
ATTRIBUTE
---
I
I
I
I
I
---
---
---
OD
OD
OD
OD
OD
OD
OD
OD
EXTFDD
---
INDEX 2
TRAK 02
WP2
RDATA 2
DSKCHG2
---
---
---
DSB2
MOB2
WD2
WE2
RWC2
HEAD2
DIR2
STEP2
5.2 Enhanced Parallel Port (EPP)
TABLE 5-2 PRINTER MODE AND EPP REGISTER ADDRESS
A2
A1
A0
REGISTER
0
0
0
Data port (R/W)
0
0
1
Printer status buffer (Read)
0
1
0
Printer control latch (Write)
0
1
0
Printer control swapper (Read)
0
1
1
EPP address port (R/W)
1
0
0
EPP data port 0 (R/W)
1
0
1
EPP data port 1 (R/W)
1
1
0
EPP data port 2 (R/W)
1
1
1
EPP data port 2 (R/W)
Notes:
1. These registers are available in all modes.
2. These registers are available only in EPP mode.
NOTE
1
1
1
1
2
2
2
2
2
- 85 -
Publication Release Date:April 1998
Revision 0.52