W83L517D Datasheet, PDF (20/138 Pages) Winbond – LPC SUPER I/O

W83L517D
1.5 KBC and FLASH ROM Interface
Version 0.6
SYMBOL
P80CS#
(GP10)
(PLED)
RTCCS#
(GP11)
(WDTO)
KBCS#
(GP20)
PIN I/O
FUNCTION
4
Decoded I/O write asserted and the address 0x80h to output
I/OD12 ^{selected signal.}
General purpose I/O PORT 1 ,
Programmable Power LED.
5
Decoded the address 0x70h and 0x71h to output selected
signal .
I/OD12
General purpose I/O PORT 1 ,
Programmable watch dog timer.
O12
Decode the address 60h and 64h to output selected signal.
52
Enable by PENKB# signal with Low-level during power-on
setting.
I/O12
General purpose I/O PORT 2 ,
(PENKB#)
MCCS#
(GP21)
IRQ1IN
(GP22)
IRQ12IN
(GP23)
IOR#
(GP24)
IOW#
(GP25)
XD[0:7]
(GP30-
GP37)
IN_t
53
O12
I/O12
54
Int
I/O12
55
Int
I/O12
56
O12t
I/O12t
57
O12t
58-60
62-66
I/O12t
I/O_12t
I/O_12t
During power-on reset, this pin is pulled down internally and is
defined as PENKB# and all the K/B interface will be active,
which provides the power on value for CR24 bit 7. A 4.7kΩ
resistor is recommended if intends to pull up and disable K/B
functions.
Decode the address 62h and 66h to output selected signal
Enable by PENKB# signal with Lo-level during power-on
setting.
General purpose I/O PORT 2 ,
Parallel Interrupt Requested Input 1. This interrupt request is
used for specific K/B functions.
General purpose I/O PORT 2 ,
Parallel Interrupt Requested Input 12. This interrupt request is
used for specific K/B functions.
General purpose I/O PORT 2 ,
I/O Read. IOR# is the command to an ISA I/O slave device
that the slave may drive data on to the ISA data bus (XD[0:7]).
General purpose I/O PORT 2 ,.
I/O Write. IOW# is the command to an ISA I/O slave device
that the slave may latch data from the ISA data bus (XD[0:7]).
General purpose I/O PORT 2 ,
XData BUS. XD[0:7] provide the 8-bit data path for KBC and
ROM devices residing on the ISA Bus.
General purpose I/O PORT 3 ,
13
Publication Release Date: Apr. 2000
Revision 0.60