ETX-945 User Manual 1.00 www.diamondsystems.com Page 21
4.3 ETX3 Connector
The 100-pin ETX3 connector implements VGA, LCD (LVDS), TV-video, serial, parallel, floppy, mouse, and
keyboard signals. Because pins 51-100 are shared between floppy and parallel port functions, dual signal
assignments are indicated in the illustration below. Further information regarding each of these signal groups
follows. (Note: Pins designated “RESERVED” should be left unconnected.)
.
GND
1
2
GND
LPT/FLP#
51
52
RESERVED
R
3
4
B
VCC
53
54
GND
HSY
5
6
G
STB#/RESERVED
55
56
AFD#/DENSEL
VSY
7
8
DDCK
RESERVED
57
58
PD7/RESERVED
DETECT#
9
10
DDDA
IRRX
59
60
ERR#/HDSEL#
LCDDO16
11
12
LCDDO18
IRTX
61
62
PD6/RESERVED
LCDDO17
13
14
LCDDO19
RXD2
63
64
INIT#/DIR#
GND
15
16
GND
GND
65
66
GND
LCDDO13
17
18
LCDDO15
RTS2#
67
68
PD5/RESERVED
LCDDO12
19
20
LCDDO14
DTR2#
69
70
SLIN#/STEP#
GND
21
22
GND
DCD2#
71
72
PD4/DSKCHG#
LCDDO8
23
24
LCDDO11
DSR2#
73
74
PD3/RDATA#
LCDDO9
25
26
LCDDO10
CTS2#
75
76
PD2/WP#
GND
27
28
GND
TXD2
77
78
PD1/TRK0#
LCDDO4
29
30
LCDDO7
RI2#
79
80
PD0/INDEX#
LCDDO5
31
32
LCDDO6
VCC
81
82
VCC
GND
33
34
GND
RXD1
83
84
ACK#/DRV
LCDDO1
35
36
LCDDO3
RTS1#
85
86
BUSY/MOT
LCDDO0
37
38
LCDDO2
DTR1#
87
88
PE/WDATA#
VCC
39
40
VCC
DCD1#
89
90
SLCT/WGATE#
JILI_DAT
41
42
LTGIO0
DSR1#
91
92
MSCLK
JILI_CLK
43
44
BLON#
CTS1#
93
94
MSDAT
BIASON
45
46
DIGON
TXD1
95
96
KBCLK
COMP
47
48
Y
RI1#
97
98
KBDAT
SYNC
49
50
C
GND
99
100
GND