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MOPSlcdGX1 Product Manual
6. ISA EXPANSION
For expansion, the MOPSlcdGX1 provides a PC/104 socket. This industry-standard bus
provides ISA bus signals.
6.1
Connectors (X2a and X2b)
X2b is a 64-pin, dual-row socket connector with 0.1" x 0.1" pitch. The connector
implements standard, 8-bit, ISA-bus signals. X2a is a 40-pin connector of the same style
and implements 16-bit expansion signals on the ISA bus.
To find the location of Connectors X2a and X2b on the MOPSlcdGX1 board, please see
the
Appendix E: Connector Layout
ISA-Lower/X2a
Pin #
Signal
Pin #
A1
IOCHK#
B1
A2
SD7
B2
A3
SD6
B3
A4
SD5
B4
A5
SD4
B5
A6
SD3
B6
A7
SD2
B7
A8
SD1
B8
A9
SD0
B9
A10
IOCHRDY
B10
A11
AEN
B11
A12
SA19
B12
A13
SA18
B13
A14
SA17
B14
A15
SA16
B15
A16
SA15
B16
A17
SA14
B17
A18
SA13
B18
A19
SA12
B19
A20
SA11
B20
A21
SA10
B21
A22
SA9
B22
A23
SA8
B23
A24
SA7
B24
A25
SA6
B25
A26
SA5
B26
A27
SA4
B27
A28
SA3
B28
A29
SA2
B29
A30
SA1
B30
A31
SA0
B31
A32
GND
B32
Kontron Embedded Modules
chapter.
ISA-Upper/X2b
Signal
Pin #
GND
C0
RESDRV
C1
VCC (***)
C2
IRQ9
C3
-5V
C4
DREQ2
C5
-12V
C6
WS0#
C7
+12V
C8
GND (*)
C9
SMEMW#
C10
SMEMR#
C11
IOW#
C12
IOR#
C13
DACK3#
C14
DREQ3
C15
DACK1#
C16
DREQ1
C17
REFSH#
C18
SYSCLK
C19
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2#
TC
ALE
VCC (***)
OSC
GND
GND
12
ISA Expansion
Signal
Pin #
Signal
GND
D0
GND
BHE#
D1
MEMCS16#
LA23
D2
IOCS16#
LA22
D3
IRQ10
LA21
D4
IRQ11
LA20
D5
IRQ12
LA19
D6
IRQ15
LA18
D7
IRQ14
LA17
D8
DACK0#
MEMR#
D9
DREQ0
MEMW#
D10
DACK5#
SD8
D11
DREQ5
SD9
D12
DACK6#
SD10
D13
DREQ6
SD11
D14
DACK7#
SD12
D15
DREQ7
SD13
D16
VCC (***)
SD14
D17
\MASTER (**)
SD15
D18
GND
KEY(*)
D19
GND
Revision 1.3
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