PIN
No./QFP
NAME
TOTAL
SYMBOL
GP12
BUFFER TYPE
79
80
81
82
General Purpose 12/WDT/P17/EETI
General Purpose 13/LED Driver
General Purpose 14/Infrared Rx
General Purpose 15/Infrared Tx (Note 3)
1
1
1
1
IO4
IO24
IO4
GP13
GP14
GP15
IO24
BIOS INTERFACE (10)
83
84
85
86
87
88
89
90
91
92
ROM Bus 0/IRQ1/GP60/nSMI
ROM Bus 1/IRQ3/GP61/LED
ROM Bus 2/IRQ4/GP62/nRING
ROM Bus 3/IRQ5/GP63/WDT
ROM Bus 4/IRQ6/GP64/P17
ROM Bus 5/IRQ7/GP65
1
1
1
1
1
1
1
1
1
1
RD0
IO12
IO24
IO12
IO12
IO12
IO12
IO12
IO12
IO12
IO12
RD1
RD2
RD3
RD4
RD5
ROM Bus 6/IRQ8/GP66
RD6
ROM Bus 7/IRQ10/GP67
RD7
nROMCS/IRQ11/GP53/EETI
nROMOE/IRQ12/GP54/EETI
nROMCS
nROMOE
SERIAL PORT 1 INTERFACE (8)
112
113
115
Receive Serial Data 1
Transmit Serial Data 1
Request to Send 1
1
1
1
RXD1
TXD1
I
O4
IO4
nRTS1/
SYSOP
116
117
114
119
118
Clear to Send 1
1
nCTS1
nDTR1
nDSR1
nDCD1
nRI1
I
Data Terminal Ready 1
Data Set Ready 1
Data Carrier Detect 1
Ring Indicator 1
1
O4
1
I
I
I
1
1
SERIAL PORT 2 INTERFACE (8)
123
124
126
Receive Serial Data 2/Infrared Rx
Transmit Serial Data 2/Infrared Tx (Note 3)
Request to Send 2
1
1
1
RXD2/IRRX
TXD2/IRTX
nRTS2
I
O24
O4
9
SMSC [ SMSC CORPORATION ]
