DESCRIPTION OF PIN FUNCTIONS
PIN
No./QFP
98
NAME
Request to Send 2/Sys Addr 12/ Parallel
IRQ_5
Clear to Send 2/Sys Addr 13/ Parallel
IRQ_6
Data Terminal Ready/Sys Addr 14/ Parallel
IRQ_7
Data Set Ready 2/Sys Addr 15/ Parallel
IRQ_10/nSMI
Data Carrier Detect 2/8042 P12/ Parallel
IRQ_11
Ring Indicator 2/8042 P16/Parallel IRQ_12
TOTAL
1
SYMBOL
nRTS2/SA12
/IRQ5
nCTS2/SA13
/IRQ6
nDTR2/SA14
/IRQ7
nDSR2/SA15
/IRQ10/
nSMI
nDCD2/P12/
IRQ11
nRI2/P16/
IRQ12
BUFFER
TYPE
O4/I/O24/
OD24
(Note 0)
I/I/O24/
OD24
(Note 0)
O4/I/O24/
OD24
(Note 0)
I/I/O24/OD
24 (Note 0)
I/IO24/O24
/OD24
(Note 0)
I/IO24/O24
/OD24
(Note 0)
IO24
OD24/O24
OD24/O24
OD24/O24
OD24/O24
I
I
I
I
I
IOD16P
IOD16P
IOD16P
IOD16P
O4
99
1
100
1
97
1
94
1
92
1
68:75
67
66
82
83
79
80
78
77
81
56
57
58
59
63
PARALLEL PORT INTERFACE (17)
Parallel Port Data Bus
8
Printer Select
1
Initiate Output
1
Auto Line Feed
1
Strobe Signal
1
Busy Signal
1
Acknowledge Handshake
1
Paper End
1
Printer Selected
1
Error at Printer
1
KEYBOARD/MOUSE INTERFACE (6)
Keyboard Data
1
Keyboard Clock
1
Mouse Data
1
Mouse Clock
1
Keyboard Reset
1
PD[0:7]
nSLCTIN
nINIT
nALF
nSTROBE
BUSY
nACK
PE
SLCT
nERROR
KDAT
KCLK
MDAT
MCLK
KBDRST
(Note 3)
8
SMSC [ SMSC CORPORATION ]
