Delta Data Systems PMAC PCI - E34 - E38: Encoder Sampling Clock Frequency Control; E40 - E43: Software Address Control

PMAC-PCI Hardware Reference
18 PMAC-PCI E-Point Jumper Descriptions
E34 - E38: Encoder Sampling Clock Frequency Control
Jumpers E34 - E38 control the encoder-sampling clock (SCLK) used by the gate array ICs. No more than
one of these six jumpers may be on at a time.
E34A
E34
E35
E36
E37
E38
SCLK Clock
Frequency
Default and
Physical Layout
E34A E34 E35 E36 E37 E38
A4 A4 A4 A4 A4 A4
ON
OFF
OFF
OFF
OFF
OFF
19.6608 MHz
OFF
ON
OFF
ON
OFF
OFF
9.8304 MHz
E34 ON
OFF
OFF
ON
OFF
OFF
OFF
4.9152 MHz
OFF
OFF
OFF
ON
OFF
OFF
2.4576 MHz
OFF
OFF
OFF
OFF
ON
OFF
1.2288 MHz
OFF
OFF
OFF
OFF
OFF
ON
External clock 1 to 30 MHz
maximum input on CHC4
and CHC4/
E40 - E43: Software Address Control
Jumpers E40-E43 control the software address of the card, for serial addressing and for sharing the servo
and phase clock over the serial connector. Card @0 sends the clocks and cards @1-@F receive the clocks.
Card Address Control
E Points
Default and Physical Layout
E40 E41 E42 E43
E40
E41
E42
E43
Card Address
Location B5 B5 B5 B5
ON
ON
ON
ON
@0
@0
OFF
ON
ON
ON
@1
ON
OFF
ON
ON
@2
OFF
OFF
ON
ON
@3
ON
ON
OFF
ON
@4
OFF
ON
OFF
ON
@5
ON
OFF
OFF
ON
@6
OFF
OFF
OFF
ON
@7
ON
ON
ON
OFF
@8
OFF
ON
ON
OFF
@9
ON
OFF
ON
OFF
@A
OFF
OFF
ON
OFF
@B
ON
ON
OFF
OFF
@C
OFF
ON
OFF
OFF
@D
ON
OFF
OFF
OFF
@E
OFF
OFF
OFF
OFF
@F
Note: The card must either be set up as @0, or receiving clock signals over the serial port from another
card that is set up as @0, or the watchdog timer will trip (red light ON) and the card will shut down.