MACRO CPU Board Hardware Reference Manual
Connector Pinouts
19
CONNECTOR PINOUTS
The schematic circuits shown in this section are for interface reference only. Subtle differences
may exist between the circuits shown here and the actual hardware used.
J6: (JTHW) Multiplexer Port Connector
(26-pin head at Location D-3)
Front View
Pin #
Symbol
Function
Description
Notes
1 GND
Common
PMAC
Common
2 GND
Common
PMAC
Common
3
DAT0
In/Out
Data Byte Bit 0
Must be in for MUX
4
SEL0
In/Out
Select Byte Bit 0
Must be out for MUX
5
DAT1
In/Out
Data Byte Bit 1
Must be in for MUX
6
SEL1
In/Out
Select Byte Bit 1
Must be out for MUX
7
DAT2
In/Out
Data Byte Bit 2
Must be in for MUX
8
SEL2
In/Out
Select Byte Bit 2
Must be out for MUX
9
DAT3
In/Out
Data Byte Bit 3
Must be in for MUX
10
SEL3
In/Out
Select Byte Bit 3
Must be out for MUX
11
DAT4
In/Out
Data Byte Bit 4
Must be in for MUX
12
SEL4
In/Out
Select Byte Bit 4
Must be out for MUX
13
DAT5
In/Out
Data Byte Bit 5
Must be in for MUX
14
SEL5
In/Out
Select Byte Bit 5
Must be out for MUX
15
DAT6
In/Out
Data Byte Bit 6
Must be in for MUX
16
SEL6
In/Out
Select Byte Bit 6
Must be out for MUX
17
DAT7
In/Out
Data Byte Bit 7
Must be in for MUX
18
SEL7
In/Out
Select Byte Bit 7
Must be out for MUX
19 N.C.
N.C No
Connection
20 GND
Common
PMAC
Common
21
BRLD/
Output
Buffer Request
Low is Buffer Request
22 GND
Common
PMAC
Common
23
IPLD/
Output
In Position
Low is In Position
24 GND
Common
PMAC
Common
25
+5V
Output
+5VDC Supply
Power supply out
26
INIT/
Input
PMAC Reset
Low is Reset
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