User's Manual

Turbo PMAC2 VME Hardware Reference
36 Axis Piggyback Board Connector Descriptions
J12 (JMACH4) Machine Connector
(Continued)
____________ __________
99 | ooooooooooo … oooooooooo | 1
100 | ooooooooooo … oooooooooo
| 2
Pin# Symbol Function Description Notes
75 ADC_STB8+ Output A/D Converter Strobe Programmable sequence
76 ADC_STB8- Output A/D Converter Strobe Programmable sequence
77 ADC_DAA8+ Input Chan A ADC Serial Data MSB first
78 ADC_DAA8- Input Chan A ADC Serial Data MSB first
79 ADC_DAB8+ Input Chan B ADC Serial Data MSB first
80 ADC_DAB8- Input Chan B ADC Serial Data MSB first
81 AENA8+ Output Amplifier Enable High is enable
82 AENA8- Output Amplifier Enable Low is enable
83 FAULT8+ Input Amplifier Fault Programmable polarity
84 FAULT8- Input Amplifier Fault Programmable polarity
85 PWMATOP8+
DAC_CLK8+
Output Phase A Top CMD or DAC
Clock
Programmable function control
86 PWMATOP8-
DAC_CLK8-
Output Phase A Top CMD or DAC
Clock
Programmable function control
87 PWMABOT8+
DAC8A+
Output Phase A Bottom CMD or
DAC A Serial Data
Programmable function control
88 PWMABOT8-
DAC8A-
Output Phase A Bottom CMD or
DAC A Serial Data
Programmable function control
89 PWMBTOP8+
DAC_STB8+
Output Phase B Top CMD or DAC
Strobe
Programmable function control
90 PWMBTOP8-
DAC_STB8-
Output Phase B Top CMD or DAC
Strobe
Programmable function control
91 PWMBBOT8+
DAC8B+
Output Phase B Bottom CMD or
DAC B Serial Data
Programmable function control
92 PWMBBOT8-
DAC8B-
Output Phase B Bottom CMD or
DAC B Serial Data
Programmable function control
93 PWMCTOP8+
DIR8+
Output Phase B Top CMD or PFM
Direction
Programmable function control
94 PWMCTOP8-
DIR8-
Output Phase B Top CMD or PFM
Direction
Programmable function control
95 PWMCBOT8+
PULSE8+
Output Phase B Bottom CMD or
PFM Pulse
Programmable function control
96 PWMCBOT8-
PULSE8-
Output Phase B Bottom CMD or
PFM Pulse
Programmable function control
97 GND Common Reference Voltage
98 GND Common Reference Voltage
99 +5V Output / Input +5V Power For external circuit or from external
supply
100 +5V Output / Input +5V Power For external circuit or from external
supply
The JMACH4 connector provides the interface pins for channels 7 and 8. Usually, it is connected to a breakout
board, such as one of the Acc-8x family of boards, or an application-specific interface board.