Reference Manual

PMAC PCI-Lite Hardware Reference Manual
40 E-Point Jumper Descriptions
E98: DAC/ADC Clock Frequency Control
E Point and
Physical Layout
Location Description Default
E98
A7 Jump 1-2 to provide a 2.45MHz DCLK signal to DACs
and ADCs.
Jump 2-3 to provide a 1.22MHz DCLK signal to DACs
and ADCs. Important for high accuracy A/D
conversion on Acc-28.
Note:
This also divides the phase and servo clock frequencies
in half.
See E29-E33, E3-E6, I10
1-2 Jumper installed
E100: Output Flag Supply Select
E Point and
Physical Layout
Location Description Default
E100
A3 Jump pin 1 to 2 to apply analog supply voltage A+15V
to U37 flag output driver IC.
Jump pin 2 to 3 to apply flag supply voltage OPT+V to
U37 flag output driver IC.
1-2 Jumper installed
E101 - E102: Motors 1-4 Amplifier Enable Output Configure
E Point and
Physical Layout
Location Description Default
E101
A4 Jump pin 1 to 2 to apply A+15V/A+V (as set by E100)
to pin 10 of U37 AENAn and EQUn driver IC (should
be ULN2803A for sink output configuration).
Jump pin 2 to 3 to apply GND to pin 10 of U37 (should
be UDN2981A for source output configuration).
Caution:
The jumper setting must match the type of driver IC,
or damage to the IC will result.
1-2 Jumper installed
E102
A4 Jump pin 1 to 2 to apply GND to pin 10 of U37
AENAn and EQUn (should be ULN2803A for sink
output configuration).
Jump pin 2 to 3 to apply A+15V/A+V (as set by E100)
to pin 10 of U37 (should be UDN2981A for source
output configuration).
Caution:
The jumper setting must match the type of driver IC,
or damage to the IC will result.
1-2 Jumper installed