w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 92

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

TABLE 8-1-2 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
8.2
TABLE 8-2 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
A2
HOST
0
0
0
0
0
1
1
1
1
Enhanced Parallel Port (EPP)
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
NUMBER OF
W83977ATF
A1
0
0
1
1
1
0
0
1
1
PIN
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)
BUSY
nSLIN
nACK
nERR
nSTB
SLCT
nAFD
nINIT
SPP
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE
- 84 -
ATTRIBUTE
W83977ATF/W83977ATG
PIN
REGISTER
OD
OD
OD
OD
OD
OD
OD
OD
OD
OD
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I
I
I
I
I
DSKCHG2
RDATA2
EXT2FD
TRAK02
INDEX2
HEAD2
STEP2
MOA2
RWC2
MOB2
DSA2
DSB2
DIR2
WP2
WD2
WE2
---
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D
ATTRIBUTE
PIN
OD
OD
OD
OD
OD
OD
OD
OD
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I
I
I
I
I
NOTE
EXTFDD
DSKCHG2
RDATA2
TRAK02
INDEX2
HEAD2
STEP2
RWC2
MOB2
DSB2
DIR2
WP2
WD2
WE2
1
1
1
1
2
2
2
2
2
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