DESCRIPTION OF PIN FUNCTIONS
PIN
No./QFP
37:40,
42:45
20:30
31
36
55
46
33
32
50
48
52
47
49
51
54
34
35
4
6
19
61
62
53,65,
93
7,41,
60,76
18
NAME
TOTAL
SYMBOL
BUFFER
TYPE
IO12
I
I
I
OD12
IS
IO12
ICLK
O12
O12
O12/IO12
I
I
I/IO12
I
I
I
OD24
ICLK
ICLK
I
O24PD
PROCESSOR/HOST INTERFACE (36)
System Data Bus
8
SD[0:7]
11-bit System Address Bus
Chip Select/SA11 (Note 1)
Address Enable
I/O Channel Ready
ISA Reset Drive
Serial IRQ
PCI Clock for Serial IRQ (33MHz/30MHz)
DMA Request 1
DMA Request 2
DMA Request 3/8042 P12
DMA Acknowledge 1
DMA Acknowledge 2
DMA Acknowledge 3/8042 P16
Terminal Count
I/O Read
I/O Write
Power Management Event
32.768 Trickle Clock Input
CLOCKS (1)
14.318MHz Clock Input
1
INFRARED INTERFACE (2)
Infrared Rx
1
Infrared Tx (Note 4), (Note 5)
1
POWER PINS (8)
Power
Ground
Trickle Voltage
6
CLOCKI
IRRX
IRTX
VCC
VSS
VTR
11
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SA[0:10]
nCS/SA11
AEN
IOCHRDY
RESET_DRV
SER_IRQ
PCI_CLK
DRQ1
DRQ2
DRQ3/P12
nDACK1
nDACK2
nDACK3/
P16
TC
nIOR
nIOW
nPME
CLOCK132
SMSC [ SMSC CORPORATION ]
