W83L517D_05 Datasheet, PDF (19/133 Pages) Winbond – LPC I/O for Notebook

W83L517D/W83L517D-F
4.5 KBC and FLASH ROM Interface
SYMBOL PIN
P80CS#
(GP10)
4
(PLED)
RTCCS#
(GP11)
5
(WDTO)
KBCS#
(GP20)
(PENKB#) ⁵²
MCCS#
(GP21)
IRQ1IN
(GP22)
IRQ12IN
(GP23)
IOR#
(GP24)
IOW#
(GP25)
XD[0:7]
53
54
55
56
57
58-60
(GP30-
GP37)
62-66
I/O
I/OD12
I/OD12
OD12
I/O12
IN_t
OD12
I/O12
Int
I/O12
Int
I/O12
O12t
I/O12t
O12t
I/O12t
I/O_12t
I/O_12t
FUNCTION
Decoded I/O write asserted and the address 0x80h to output
selected signal.
General purpose I/O PORT 1 ,
Programmable Power LED.
Decoded the address 0x70h and 0x71h to output selected signal .
General purpose I/O PORT 1 ,
Programmable watch dog timer.
Decode the address 60h and 64h to output selected signal.
Enable by PENKB# signal with Low-level during power-on setting.
General purpose I/O PORT 2 ,
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 ,
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Publication Release Date: May 23, 2005
Revision 1.0