w83977f Winbond Electronics Corp America, w83977f Datasheet - Page 90

• Manufacturer Part Number: w83977f
• Description: Plug & Play 1.0a Compliant
• Manufacturer: Winbond Electronics Corp America

5. PARALLEL PORT
5.1
The parallel port of the W83977F/ AF makes possible the attachment of various devices that accept
eight bits of parallel data at standard TTL level.
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) on the parallel port.
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 5-1-1 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.
TABLE 5-1-2 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
CONNECTOR
CONNECTOR
HOST
HOST
Printer Interface Logic
1
2
3
4
5
6
7
2-9
10
11
12
13
14
15
16
17
1
PIN NUMBER OF
W83977F/ AF
OF W83977F/ AF
PIN NUMBER
31-26, 24-23
36
31
30
29
28
27
26
36
22
21
19
18
35
34
33
32
ATTRIBUTE
ATTRIBUTE
Refer to the configuration registers for more information on
PIN
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
- 78 -
PD<0:7>
BUSY
nSLIN
nACK
SLCT
nERR
nSTB
nAFD
nINIT
SPP
PE
ATTRIBUTE
The W83977F/ AF supports an IBM XT/AT
PIN
---
---
I
I
I
I
I
W83977F/ W83977AF
PD<0:7>
Publication Release Date: January 1997
nDStrb
nAStrb
nWrite
Select
nError
nWait
EPP
nInit
Intr
PE
DSKCHG2
EXT2FDD
RDATA2
TRAK02
INDEX 2
WP2
---
---
nSTB, HostClk
PD<0:7>
nACK, PeriphClk
BUSY, PeriphAck
PEerror, nAckReverse
SLCT, Xflag
nAFD, HostAck
nFault
nINIT
nSLIN
1
1
1
, nReverseRqst
, nPeriphRequest
ATTRIBUTE
, ECPMode
PRELIMINARY
PIN
2
---
---
I
I
I
I
I
ECP
2
2
2
2
Revision 0.50
2
2
2
DSKCHG2
2
RDATA2
EXTFDD
TRAK02
INDEX 2
WP2
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