Specifications

MACRO CPU Board
3U MACRO CPU Board Connector Pinouts 21
3U MACRO-CPU BOARD 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 # S
y
mbol Function Descri
p
tion Notes
1 GND Common PMAC Common
2 GND Common PMAC Common
3 DAT0 In/Ou
t
Data B
y
te Bit 0 Must be IN for MUX
4 SEL0 In/Ou
t
Select B
y
te Bit 0 Must be OUT for MUX
5 DAT1 In/Ou
t
Data B
y
te Bit 1 Must be IN for MUX
6 SEL1 In/Ou
t
Select B
y
te Bit 1 Must be OUT for MUX
7 DAT2 In/Out Data Byte Bit 2 Must be IN for MUX
8 SEL2 In/Ou
t
Select B
y
te Bit 2 Must be OUT for MUX
9 DAT3 In/Ou
t
Data B
y
te Bit 3 Must be IN for MUX
10 SEL3 In/Ou
t
Select B
y
te Bit 3 Must be OUT for MUX
11 DAT4 In/Ou
t
Data B
y
te Bit 4 Must be IN for MUX
12 SEL4 In/Ou
t
Select B
y
te Bit 4 Must be OUT for MUX
13 DAT5 In/Ou
t
Data B
y
te Bit 5 Must be IN for MUX
14 SEL5 In/Ou
t
Select B
y
te Bit 5 Must be OUT for MUX
15 DAT6 In/Ou
t
Data B
y
te Bit 6 Must be IN for MUX
16 SEL6 In/Ou
t
Select B
y
te Bit 6 Must be OUT for MUX
17 DAT7 In/Ou
t
Data B
y
te Bit 7 Must be IN for MUX
18 SEL7 In/Ou
t
Select B
y
te Bit 7 Must be OUT for MUX
19
N
.C.
N
.C
N
o Connection
20 GND Common PMAC Common
21 BRLD/ Out
p
u
t
Buffer Re
q
ues
t
Low is “BUFFER REQ.”
22 GND Common PMAC Common
23 IPLD/ Out
p
u
t
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”