w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 189

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

TABLE 5-1-2 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
5.2 Enhanced Parallel Port (EPP)
TABLE 5-2 PRINTER MODE AND EPP REGISTER ADDRESS
Notes:
1. These registers are available in all modes.
2. These registers are available only in EPP mode.
CONNECTOR
HOST
A2
0
0
0
0
0
1
1
1
1
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
PIN NUMBER OF
A1
W83977ATF
0
0
1
1
1
0
0
1
1
36
31
30
29
28
27
26
24
23
22
21
19
18
35
34
33
32
A0
0
1
0
0
1
0
1
0
1
ATTRIBUTE
PIN
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
I
Data port (R/W)
Printer status buffer (Read)
Printer control latch (Write)
Printer control swapper (Read)
EPP address port (R/W)
EPP data port 0 (R/W)
EPP data port 1 (R/W)
EPP data port 2 (R/W)
EPP data port 2 (R/W)
nSLIN
nACK
BUSY
nERR
nSTB
SLCT
nAFD
nINIT
- 85 -
SPP
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE
ATTRIBUTE
REGISTER
PIN
OD
OD
OD
OD
OD
OD
OD
OD
OD
OD
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I
I
I
I
I
Publication Release Date:April 1998
DSKCHG2
EXT2FDD
RDATA2
TRAK02
INDEX 2
HEAD2
STEP2
MOA2
RWC2
MOB2
DSA2
DSB2
DIR2
WP2
WD2
WE2
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W83977ATF
PRELIMINARY
ATTRIBUTE
PIN
OD
OD
OD
OD
OD
OD
OD
OD
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I
I
I
I
I
Revision 0.52
NOTE
DSKCHG2
1
1
1
1
2
2
2
2
2
RDATA2
EXTFDD
TRAK02
INDEX 2
HEAD2
STEP2
RWC2
MOB2
DSB2
DIR2
WP2
WD2
WE2
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