W83697HF/F
6. PARALLEL PORT
6.1 Printer Interface Logic
The parallel port of the W83627HF makes possible the attachment of various devices that accept eight
bits of parallel data at standard TTL level. The W83627HF 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) on the parallel
port. Refer to the configuration registers for more information on disabling, power-down, and on selecting
the mode of operation.
Table 6-1 shows the pin definitions for different modes of the parallel port.
TABLE 6-1-1 PARALLEL PORT CONNECTOR AND PIN DEFINITIONS
HOST
CONNECTOR
PIN NUMBER
OF W83627HF
PIN
ATTRIBUTE
SPP
EPP
ECP
2
1
36
O
nSTB
nWrite
nSTB, HostClk
2-9
10
31-26, 24-23
22
I/O
I
PD<0:7>
nACK
PD<0:7>
Intr
PD<0:7>
nACK, PeriphClk
2
2
11
12
13
14
15
16
17
21
19
18
35
34
33
32
I
I
BUSY
PE
nWait
PE
BUSY, PeriphAck
2
PEerror, nAckReverse
2
I
SLCT
nAFD
nERR
nINIT
nSLIN
Select
nDStrb
nError
nInit
SLCT, Xflag
2
O
I
nAFD, HostAck
1
2
nFault , nPeriphRequest
1
2
O
O
nINIT , nReverseRqst
1
2
nAStrb
nSLIN , ECPMode
Notes:
n<name > : Active Low
1. Compatible Mode
2. High Speed Mode
3. For more information, refer to the IEEE 1284 standard.
Publication Release Date: Feb. 2002
Revision 0.70
- 63 -
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