w83l517g Winbond Electronics Corp America, w83l517g Datasheet - Page 90

• Manufacturer Part Number: w83l517g
• Description: Winbond Lpc I/o For Notebook W83l517d/ W83l517d-f
• Manufacturer: Winbond Electronics Corp America

9. PARALLEL PORT
9.1
The parallel port of the W83L517D makes possible the attachment of various devices that accept
eight bits of parallel data at standard TTL level. The W83L517D 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 8-1 shows the pin definitions for different modes of the parallel port.
TABLE 8-1-1 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.
Bit 4:
Bit 3:
Bit 2~0:
CONNECTOR
Printer Interface Logic
HOST
2-9
10
11
12
13
14
15
16
17
1
RXINV - Receiving Signal Invert
TXINV - Transmitting Signal Invert
Reserved, write 0.
A write to 1 will Invert the receiving signal.
A write to 1 will Invert the transmitting signal.
OF W83627HF
PIN NUMBER
31-26, 24-23
36
22
21
19
18
35
34
33
32
PIN ATTRIBUTE
I/O
O
O
O
O
I
I
I
I
I
- 90 -
W83L517D/W83L517D-F
PD<0:
nSLIN
BUSY
nERR
nACK
SLCT
nAFD
nSTB
nINIT
SPP
PE
7>
PD<0:7
nDStrb
nAStrb
nWrite
Select
nError
nWait
EPP
nInit
Intr
PE
>
nSLIN
BUSY, PeriphAck
nACK, PeriphClk
nPeriphRequest
nAFD, HostAck
nSTB, HostClk
nReverseRqst
nAckReverse
SLCT, Xflag
PD<0:7>
PEerror,
nFault
1
nINIT
, ECPMode
ECP
1
1
,
,
2
2
2
2
2
2
2
2
2