W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 58

• Manufacturer Part Number: W83977A
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

4. INFRARED (IR) PORT
The Infrared (IR) function provides point-to-point (or multi-point to multi-point) wireless
communication which can operate under various transmission protocols including IrDA 1.0 SIR,
SHARP ASK-IR. IR port shares the same port with UART B port in W83977TF. Please refer to
section
5. PARALLEL PORT
5.1
The parallel port of the W83977TF makes possible the attachment of various devices that accept
eight bits of parallel data at standard TTL level. The W83977TF 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.
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.
CONNECTOR
HOST
Printer Interface Logic
2-9
10
11
12
13
14
15
16
17
11.5
1
for configuration information.
OF W83977TF
PIN NUMBER
31-26, 24-23
36
22
21
19
18
35
34
33
32
ATTRIBUTE
Refer to the configuration registers for more information on
PIN
I/O
O
O
O
O
I
I
I
I
I
- 49 -
PD<0:7>
BUSY
nSLIN
nSTB
nACK
SLCT
nAFD
nERR
nINIT
SPP
PE
PD<0:7>
nDStrb
nAStrb
nWrite
Select
nError
nWait
EPP
nInit
Publication Release Date: March 1998
Intr
PE
nSTB, HostClk
PD<0:7>
nACK, PeriphClk
BUSY, PeriphAck
PEerror, nAckReverse
SLCT, Xflag
nAFD, HostAck
nFault
nINIT
nSLIN
1
1
1
, nReverseRqst
, nPeriphRequest
W83977TF
, ECPMode
PRELIMINARY
2
ECP
2
2
2
2
Revision 0.62
2
2
2
2