User's Manual

PMAC2 PCI Lite Hardware Reference Manual – Preliminary Documentation
Base Board Connector Pinouts 31
J10 JMACH2 Connector
(Continued)
Front View
Pin# Symbol Function Description Notes
46 PWMCBOT3-
PULSE3-
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 CHA4+ Input Encoder 4 positive A channel Also pulse input
56 CHA4- Input Encoder 4 negative A channel Also pulse input
57 CHB4+ Input Encoder 4 positive B channel Also direction input
58 CHB4- Input Encoder 4 negative B channel Also direction input
59 CHC4+ Input Encoder 4 positive C channel Index channel
60 CHC4- Input Encoder 4 negative C channel Index channel
61 CHU4 Input Channel 4 U flag Hall effect, fault code, or sub-
count
62 CHV4 Input Channel 4 V flag Hall effect, fault code, or sub-
count
63 CHW4 Input Channel 4 W flag Hall effect, fault code, or sub-
count
64 CHT4 Input Channel 4 T flag Fault code, or sub-count
65 USER4 Input General purpose user flag Hardware capture flag, or
sub-count
66 PLIM4 Input Positive overtravel limit Hardware capture flag
67 MLIM4 Input Negative overtravel limit Hardware capture flag
68 HOME4 Input Home switch input Hardware capture flag
69 ACCFLT4 Input Accessory fault flag For loss of ACC supply
voltage
70 WD0/ Output Watchdog output Low is PMAC watchdog fault
71 SCLK34+ Input / Output Encoder sample clock Direction controlled by
PMAC2 jumper
72 SCLK34- Input / Output Encoder sample clock Direction controlled by
PMAC2 jumper
73 ADC_CLK4+ Output A/D converter clock Programmable frequency
74 ADC_CLK4- Output A/D converter clock Programmable frequency
75 ADC_STB4+ Output A/D converter strobe Programmable sequence
76 ADC_STB4- Output A/D converter strobe Programmable sequence
77 ADC_DAA4+ Input Channel A ADC serial data MSB first
78 ADC_DAA4- Input Channel A ADC serial data MSB first
79 ADC_DAB4+ Input Channel B ADC serial data MSB first
80 ADC_DAB4- Input Channel B ADC serial data MSB first