User's Manual

PMAC2 PCI Hardware Reference Manual
32 Base Board Connector Pinouts
J11 JMACH3 Connector
(Continued)
Front View
Pin# Symbol Function Description Notes
53 GND Common Reference voltage
54 GND Common Reference voltage
55 CHA6+ Input Encoder 6 positive A channel Also pulse input
56 CHA6- Input Encoder 6 negative A channel Also pulse input
57 CHB6+ Input Encoder 6 positive B channel Also direction input
58 CHB6- Input Encoder 6 negative B channel Also direction input
59 CHC6+ Input Encoder 6 positive C channel Index channel
60 CHC6- Input Encoder 6 negative C channel Index channel
61 CHU6 Input Channel 6 U flag Hall effect, fault code, or sub-count
62 CHV6 Input Channel 6 V flag Hall effect, fault code, or sub-count
63 CHW6 Input Channel 6 W flag Hall effect, fault code, or sub-count
64 CHT6 Input Channel 6 T flag Fault code, or sub-count
65 USER6 Input General purpose user flag Hardware capture flag, or sub-count
66 PLIM6 Input Positive overtravel limit Hardware capture flag
67 MLIM6 Input Negative overtravel limit Hardware capture flag
68 HOME6 Input Home switch input Hardware capture flag
69 ACCFLT6 Input Accessory fault flag For loss of ACC supply voltage
70 WD0/ Output Watchdog output Low is PMAC watchdog fault
71 SCLK56+ Input / Output Encoder sample clock Direction controlled by PMAC2
jumper
72 SCLK56- Input / Output Encoder sample clock Direction controlled by PMAC2
jumper
73 ADC_CLK6+ Output A/D converter clock Programmable frequency
74 ADC_CLK6- Output A/D converter clock Programmable frequency
75 ADC_STB6+ Output A/D converter strobe Programmable sequence
76 ADC_STB6- Output A/D converter strobe Programmable sequence
77 ADC_DAA6+ Input Channel A ADC serial data MSB first
78 ADC_DAA6- Input Channel A ADC serial data MSB first
79 ADC_DAB6+ Input Channel B ADC serial data MSB first
80 ADC_DAB6- Input Channel B ADC serial data MSB first
81 AENA6+ Output Amplifier enable High is enable
82 AENA6- Output Amplifier enable Low is enable
83 FAULT6+ Input Amplifier fault Programmable polarity
84 FAULT6- Input Amplifier fault Programmable polarity
85 PWMATOP6+
DAC_CLK6+
Output Phase A top Cmd. or DAC
Clock
Programmable function control
86 PWMATOP6-
DAC_CLK6-
Output Phase A top Cmd. or DAC
Clock
Programmable function control
87 PWMABOT6+
DAC6A+
Output Phase A bottom Cmd. or
DAC A serial data
Programmable function control
88 PWMABOT6-
DAC6A-
Output Phase A bottom Cmd. or
DAC A serial data
Programmable function control
89 PWMBTOP6+
DAC_STB6+
Output Phase B top Cmd. or DAC
strobe
Programmable function control
90 PWMBTOP6-
DAC_STB6-
Output Phase B top Cmd. or DAC
strobe
Programmable function control
91 PWMBBOT6+
DAC6B+
Output Phase B bottom Cmd. or DAC
B serial data
Programmable function control