22
Pin
Signal
Description
Type
PU/PD
Comment
51
LPT | FLPY#
LPT / Floppy Interface Select
NC
-
-
52
RESERVED
NC
-
53 5VCC Power
+5V
PWR -
-
54 GND Ground
PWR -
-
55
STB# | RSV
LPT Strobe Signal
O-5 -
-
56
AFD# | DENSEL
LPT Automatic Feed / Floppy Density
Select
O-5 -
-
57
RESERVED
NC
-
58
PD7 | RSV
LPT Data Bus D7
IO-5 -
-
59 IRRX Infrared
Receive
I-5 -
-
60
ERR# | HDSEL# LPT Error / Floppy Head Select
IO-5 -
-
61 IRTX Infrared
Transmit
O-5 -
-
62
PD6 | RSV
LPT Data Bus D6
IO-5 -
-
63
RXD2
Data Receive COM2
I-5 -
-
64
INIT# | DIR#
LPT Initiate / Floppy Direction
O-5 -
-
65 GND Ground
PWR -
-
66 GND Ground
PWR -
-
67
RTS2#
Request to Send COM2
O-5 -
-
68
PD5 | RSV
LPT Data Bus D5
IO-5 -
-
69
DTR2#
Data Terminal Ready COM2
O-5 -
-
70
SLIN# | STEP#
LPT Select / Floppy Motor Step
O-5 -
-
71
DCD2#
Data Carrier Detect COM2
I-5 -
-
72
PD4 |
DSKCHG#
LPT Data Bus D4
IO-5 -
-
73
DSR2#
Data Set Ready COM2
I-5 -
-
74
PD3 | RDATA#
LPT Data Bus D3
IO-5 -
-
75
CTS2#
Clear to Send COM2
I-5 -
-
76
PD2 | WP#
LPT Data Bus D2
IO-5 -
-
77
TXD2
Data Transmit COM2
O-3.3
PU 1k 3.3V
-
78
PD1 | TRK0#
LPT Data Bus D1
IO-5 -
-
79
RI2#
Ring Indicator COM2
I-5 -
-
80
PD0 | INDEX#
LPT Data Bus D0
IO-5 -
-
81 5VCC Power
+5V
PWR -
-
82 5VCC Power
+5V
PWR -
-
83
RXD1#
Data Receive COM1
I-5 -
-
84
ACK# | DRV
LPT Acknowledge / Floppy Drive
Select
IO-5 -
-
85
RTS1#
Request to Send COM1
O-5
PD 1k
-
86
BUSY# | MOT
LPT Busy / Floppy Motor Select
IO-5 -
-
87
DTR1#
Data Terminal Ready COM1
O-5 -
-
88
PE | WDATA#
LPT Paper Empty / Floppy Raw Write
Data
IO-5 -
-
89
DCD1#
Data Carrier Detect COM1
I-5 -
-
90
SLCT#|WGATE# LPT Power On / Floppy Write Enable
IO-5 -
-
91
DSR1#
Data Set Ready COM1
I-5 -
-
92 MSCLK Mouse
Clock
O-5
PU 4k7 5V
-
93
CTS1#
Clear to Send COM1
I-5 -
-
94 MSDAT Mouse
Data
IO-5
PU 4k7 5V
-
95
TXD1
Data Transmit COM1
O-5
PU 1k 3.3V
-
96 KBCLK Keyboard
Clock
O-5
PU 4k7 5V
-
97
RI1#
Ring Indicator COM1
I-5 -
-
98 KBDAT Keyboard
Data
IO-5
PU 4k7 5V
-
99 GND Ground
PWR -
-
100 GND Ground
PWR -
-
