User's Manual

Turbo PMAC2 PCI Hardware Reference Manual
38 Baseboard Connector Pinouts
J12 (JMACH4) Connector Description (Continued)
Pin # Symbol Function Description Notes
28 ADC_DAA7- Input Channel A ADC serial data MSB first
29 ADC_DAB7+ Input Channel B ADC serial data MSB first
30 ADC_DAB7- Input Channel B ADC serial data MSB first
31 AENA7+ Output Amplifier enable High is enable
32 AENA7- Output Amplifier enable Low is enable
33 FAULT7+ Input Amplifier fault Programmable parity
34 FAULT7- Input Amplifier fault Programmable parity
35 PWMATOP7+
DAC_CLK7+
Output Phase A top CMD or DAC
clock
Programmable function control
36 PWMATOP7-
DAC_CLK7-
Output Phase A top CMD or DAC
clock
Programmable function control
37 PWMABOT7+
DAC7A+
Output Phase A bottom CMD or DAC
A serial data
Programmable function control
38 PWMABOT7-
DAC7A-
Output Phase A bottom CMD or DAC
A serial data
Programmable function control
39 PWMBTOP7+
DAC_STB7+
Output Phase B top CMD or DAC
strobe
Programmable function control
40 PWMBTOP7-
DAC_STB7-
Output Phase B top CMD or DAC
strobe
Programmable function control
41 PWMBBOT7+
DAC7B+
Output Phase B bottom CMD or DAC
B serial data
Programmable function control
42 PWMBBOT7-
DAC7B-
Output Phase B bottom CMD or DAC
B serial data
Programmable function control
43 PWMCTOP7+
DIR7+
Output Phase B top CMD or PFM
direction
Programmable function control
44 PWMCTOP7-
DIR7-
Output Phase B top CMD. or PFM
direction
Programmable function control
45 PWMCBOT7+
PULSE7+
Output Phase B bottom CMD or PFM
pulse
Programmable function control
46 PWMCBOT7-
PULSE7-
Output Phase B bottom 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 CHA8+ Input Encoder 8 positive A Channel Also pulse input
56 CHA8- Input Encoder 8 negative A Channel Also pulse input
57 CHB8+ Input Encoder 8 positive B Channel Also direction input
58 CHB8- Input Encoder 8 negative B Channel Also direction input
59 CHC8+ Input Encoder 8 positive C Channel Index channel
60 CHC8 Input Encoder 8 negative C Channel Index channel
61 CHU8 Input Channel 8 U flag Hall effect, fault code or sub-count