W83877 Winbond Electronics Corp America, W83877 Datasheet - Page 52

• Manufacturer Part Number: W83877
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

5.0 PARALLEL PORT
5.1 Printer Interface Logic
The parallel port of the W83877F makes possible the attachment of various devices that accept eight
bits of parallel data at standard TTL level. The W83877F supports an IBM XT/AT compatible parallel
port (SPP), bi-directional parallel port (BPP), Enhanced Parallel Port (EPP), Extended Capabilities
Parallel Port (ECP), Extension FDD mode (EXTFDD), Extension 2FDD mode (EXT2FDD), Extension
Adapter mode (EXTADP), and JOYSTICK mode on the parallel port. Refer to the configuration
registers for more information on disabling, power-down, and on selecting the mode of operation.
Table 5-1 shows the pin definitions for different modes of the parallel port.
TABLE 5-1 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
Notes:
n<name > : Active Low
1. Compatible Mode
2. High Speed Mode
3. For more information, refer to the IEEE 1284 standard.
CONNECTOR
CONNECTOR
HOST
HOST
2 9
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
1
PIN NUMBER
OF W83877
PIN NUMBER
OF W83877F
9 14, 16 17
19
10
11
12
13
14
15
9
19
26
24
27
28
20
29
21
22
ATTRIBUTE
ATTRIBUTE
PIN
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
PIN
I/O
O
O
O
O
I
I
I
I
I
nSTB
SPP
PD0
PD1
PD2
PD3
PD4
PD5
PD6
- 52 -
PD<0:7>
BUSY
nSLIN
nACK
SLCT
nERR
nSTB
nAFD
nINIT
SPP
PE
ATTRIBUTE
PIN
OD
---
---
I
I
I
I
I
PD<0:7>
nDStrb
nWrite
nAStrb
Select
nError
nWait
EPP
nInit
Intr
PE
DSKCHG2
EXT2FDD
RDATA2
TRAK02
INDEX 2
MOA2
WP2
---
---
nSTB
PD<0:7>
nACK
BUSY, PeriphAck
PEerror, nAckReverse
SLCT
nAFD, HostAck
nFault
nINIT
nSLIN
1
1
1, 2
, nReverseRqst
ATTRIBUTE
, nPeriphRequest
PIN
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---
---
I
I
I
I
I
W83877F
ECP
2
2
2
2
DSKCHG2
RDATA2
TRAK02
EXTFDD
INDEX 2
2
WP2
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