User's Manual

PMAC2 PCI Hardware Reference Manual
Base Board Connector Pinouts 25
J9 JMACH1 Connector
(Continued)
Front View
Pin# Symbol Function Description Notes
27 ADC_DAA1+ Input Chan A ADC serial data MSB first
28 ADC_DAA1- Input Chan A ADC serial data MSB first
29 ADC_DAB1+ Input Chan B ADC serial data MSB first
30 ADC_DAB1- Input Chan B ADC serial data MSB first
31 AENA1+ Output Amplifier enable High is enable
32 AENA1- Output Amplifier enable Low is enable
33 FAULT1+ Input Amplifier fault Programmable polarity
34 FAULT1- Input Amplifier fault Programmable polarity
35 PWMATOP1+
DAC_CLK1+
Output Phase A top Cmd. or DAC
clock
Programmable function control
36 PWMATOP1-
DAC_CLK1-
Output Phase A top Cmd. or DAC
clock
Programmable function control
37 PWMABOT1+
DAC1A+
Output Phase A bottom Cmd. or
DAC A serial data
Programmable function control
38 PWMABOT1-
DAC1A-
Output Phase A bottom Cmd. or
DAC A serial data
Programmable function control
39 PWMBTOP1+
DAC_STB1+
Output Phase B top Cmd. or DAC
strobe
Programmable function control
40 PWMBTOP1-
DAC_STB1-
Output Phase B top Cmd. or DAC
strobe
Programmable function control
41 PWMBBOT1+
DAC1B+
Output Phase B bottom Cmd. or DAC
B serial data
Programmable function control
42 PWMBBOT1-
DAC1B-
Output Phase B bottom Cmd. or DAC
B serial data
Programmable function control
43 PWMCTOP1+
DIR1+
Output Phase B top Cmd. or PFM
direction
Programmable function control
44 PWMCTOP1-
DIR1-
Output Phase B top Cmd. or PFM
direction
Programmable function control
45 PWMCBOT1+
PULSE1+
Output Phase B bottom Cmd. or PFM
pulse
Programmable function control
46 PWMCBOT1-
PULSE1-
Output Phase B tottom Cmd. or PFM
pulse
Programmable function control
47 GND Common Reference voltage
48 GND Common Reference voltage
49 +5V Output / Input +5V power For external circuit or from external
supply
50 +5V Output / Input +5V power For external circuit or from external
supply
51 +5V Output / Input +5V power For external circuit or from external
supply
52 +5V Output / Input +5V power For external circuit or from external
supply
53 GND Common Reference voltage
54 GND Common Reference voltage
55 CHA2+ Input Encoder 2 positive A channel Also pulse input
56 CHA2- Input Encoder 2 negative A channel Also pulse input
57 CHB2+ Input Encoder 2 positive B channel Also direction input