advertisement
PMAC2 VME Hardware Reference Manual
PMAC2 VME CPU
Connector Summary
The following paragraphs provide a brief description of each connector on the PMAC2 VME CPUs.
J1
35
36
36-pin header on backside for connection to main PMAC/PMAC2 board.
Front View
`
1
2
J2 (JEXP)
49
50
Front View
50-pin IDC header for connection to expansion port accessory boards.
J3
35
36
36-pin header on backside for connection to main PMAC/PMAC2 board.
Front View
J4 (JEXP)
9
10
Front View
1
2
`
1
2
1
2
10-pin IDC header for connection to DPRAM on accessory board (PMAC PC) or main PMAC board
(PMAC VME or PMAC2 VME).
J5 (JTAG/OnCE)
9
10
Front View
1
2
10-pin header for factory use only.
J6
8 1
Front View
8-pin SIP header for factory use only.
J7
8 1
Front View
8-pin SIP header for factory use only.
PMAC2 VME CPU 35
PMAC2 VME CPU Board
PMAC VME Hardware Reference Manual
P/N 602405
36
P/N 602705
PMAC2 VME CPU
PMAC2 VME Hardware Reference Manual
PMAC2 VME CPU Piggyback Board Jumpers
See the PMAC PC CPU Piggyback Board layout diagram for jumper locations.
E Point and
Physical Layout
E1
E2
E3
E4
E5
1
2
3
Location Description
D1 (602398)
A1 (602405)
B1 (602705)
A2 (602398)
N/A (602405)
D5 (602705)
C1 (602398)
N/A (602405)
D4 (602705)
A5 (602398)
N/A (602405)
B1 (602705)
N/A (602398)
N/A (602405)
B3 (602705)
Remove jumper to enable watchdog timer operation.
Jump pins 1 to 2 to disable watchdog timer operation
(for test purposes only).
Remove jumper to disable extended channel addressing (Channels 9-16).
Jump pins 1 to 2 to enable extended channel addressing (Channels 9-16).
Remove jumper (or no jumper present) to disable extended channel addressing (Channels 9-16).
Jump pins 1 to 2 to enable extended channel addressing (Channels 9-16).
Boot Enable Jumper.
Remove jumper for normal use.
Jump pins 1 and 2 for external firmware load (with
MAIN board E3 on).
Battery-backed RAM Size Select.
Jump pins 2 and 3 for supple-mental battery-backed memory (Option 16 only).
No Jumper if no battery-backed memory.
Default
No Jumper
No Jumper
No Jumper
No Jumper
No Jumper
PMAC2 VME CPU 37
advertisement