ETX-BT
19
Pin
Signal
Description
Type
PU/PD
Comment
51 5VCC Power
+5V
PWR - -
52 5VCC Power
+5V
PWR - -
53
SA6
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
54
IRQ5
ISA Interrupt Request 5
IO*
PU 4k7 5V
-
55
SA7
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
56
IRQ6
ISA Interrupt Request 6
IO*
PU 4k7 5V
-
57
SA8
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
58
IRQ7
ISA Interrupt Request 7
IO*
PU 4k7 5V
-
59
SA9
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
60
SYSCLK
ISA Bus Clock (CLK_SYS_ISA)
O-3,3 - -
61
SA10
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
62 REFSH# ISA
System
Refresh
Control
IO*
PU 1k 5V
int. PU 100k
63
SA11
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
64
DREQ1
ISA DMA Request 1
I*
PD 4k7 to
GND
-
65
SA12
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
66
DACK1#
ISA DMA Acknowledge 1
IO* no
PU/PD
-
67 GND Ground
PWR - -
68 GND Ground
PWR - -
69
SA13
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
70
DREQ3
ISA DMA Request 3
I*
PD 4k7 to
GND
-
71
SA14
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
72
DACK3#
ISA DMA Acknowledge 3
IO* no
PU/PD
-
73
SA15
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
74
IOR#
ISA I/O Read
IO*
PU 8k2 5V
int. PU 100k
75
SA16
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
76
IOW#
ISA I/O Write
IO*
PU 8k2 5V
int. PU 100k
77
SA18
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
78
SA17
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
79
SA19
ISA Address Bus
O*
PU 4k7 5V
int. PU 100k
80
SMEMR# ISA System Memory Read
IO*
PU 1k 5V
-
81
IOCHRDY ISA I/O Channel Ready
IO*
PU 1k 5V
-
82
AEN
ISA Address Enable
IO*
PD 4k7
-
83 5VCC Power
+5V
PWR - -
84 5VCC Power
+5V
PWR - -
85
SD0
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
86 SMEMW# ISA
System
Memory
Write
IO*
PU 1k 5V
-
87
SD2
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
88
SD1
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
89
SD3
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
90
NOWS#
ISA No Wait Status
I* PU1K
5V
-
91
DREQ2
ISA DMA Request 2
I*
PD 4k7 to
GND
-
92
SD4
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
93
SD5
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
94
IRQ9
ISA Interrupt Request 9
IO*
PU 4k7 5V
-
95
SD6
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
96
SD7
ISA Data Bus
IO*
PU 4k7 5V
int. PU 100k
97
IOCHK#
ISA I/O Channel Check
I*
PU 4k7 5V
-
98 RSTDRV ISA
Reset
O-3,3 - -
99 GND Ground
PWR - -
100 GND Ground
PWR - -
Note:
This pinout is compatible with a working voltage of 3.3V-5V.