W83977EF Datasheet, PDF (62/150 Pages) Winbond – WINBOND I/O

W83977EF
TABLE 5-1-2 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
HOST
CONNECTOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
PIN NUMBER OF
W83977EF
36
31
30
29
28
27
26
24
23
22
21
19
18
35
34
33
32
PIN
ATTRIBUTE
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
I
O
I
O
O
SPP
nSTB
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
nACK
BUSY
PE
SLCT
nAFD
nERR
nINIT
nSLIN
PIN
ATTRIBUTE
---
I
I
I
I
I
---
OD
OD
OD
OD
OD
OD
OD
OD
OD
OD
EXT2FDD
---
INDEX2#
TRAK02#
WP2#
RDATA2#
DSKCHG2#
---
MOA2#
DSA2#
DSB2#
MOB2#
WD2#
WE2#
RWC2#
HEAD2#
DIR2#
STEP2#
PIN
ATTRIBUTE
---
I
I
I
I
I
---
---
---
OD
OD
OD
OD
OD
OD
OD
OD
EXTFDD
---
INDEX2#
TRAK02#
WP2#
RDATA2#
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.
5.2.1 Data Swapper
NOTE
1
1
1
1
2
2
2
2
2
Publication Release Date: April 2003
-56 -
Revision 1.1