User's Manual

Turbo PMAC2 PCI Hardware Reference Manual
Baseboard Connector Pinouts 37
J11 (JMACH3) (Continued)
Pin # Symbol Function Description Notes
96 PWMCBOT6-
PULSE6-
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 JMACH1 connector provides the interface pins for channels 5 and 6. Usually, it is connected to a breakout
board, such as one of the Acc-8x family of boards, or an application-specific interface board.
Connector: 100-pin male box header with center key, 0050" pitch. AMP part # 1-04068-7
Delta Tau part # 014-00010-FPB.
J12 (JMACH4)
(Only present if Option 1 ordered)
J12 (JMACH4)
Pin # Symbol Function Description Notes
1 +5V Output/Input +5V power For external circuit or from external
supply
2 +5V Output/Input +5V power For external circuit or from external
supply
3 GND Common Reference voltage
4 GND Common Reference voltage
5 CHA7+ Input Encoder 7 positive A channel Also pulse input
6 CHA7- Input Encoder 7 negative A channel Also pulse input
7 CHB7+ Input Encoder 7 positive B channel Also direction input
8 CHB7- Input Encoder 7 negative B channel Also direction input
9 CHC7+ Input Encoder 7 positive C channel Index channel
10 CHC7- Input Encoder 7 negative C channel Index channel
11 CHU7 Input Channel 7 U flag Hall effect, fault code, or sub-count
12 CHV7 Input Channel 7 V flag Hall effect, fault code, or sub-count
13 CHW7 Input Channel 7 W flag Hall effect, fault code, or sub-count
14 CHT7 Input Channel 7 T flag Fault code or sub-count
15 USER7 Input General purpose user flag Hardware capture flag or sub-count
16 PLIM7 Input Positive overtravel limit Hardware capture flag
17 MLIM7 Input Negative overtravel limit Hardware capture flag
18 HOME7 Input Home switch input Hardware capture flag
19 ACCFLT7 Input Accessory fault flag For loss of ACC supply voltage
20 WD0/ Output Watchdog output Low is PMAC watchdog fault
21 SCLK78+ Input/Output Encoder sample clock Direction controlled by PMAC2
jumper
22 SCLK78- Input/Output Encoder sample clock Direction controlled by PMAC2
jumper
23 ADC_CLK7+ Output A/D converter clock Programmable frequency
24 ADC_CLK7- Output A/D converter clock Programmable frequency
25 ADC_STB7+ Output A/D converter strobe Programmable sequence
26 ADC_STB7- Output A/D converter strobe Programmable sequence
27 ADC_DAA7+ Input Channel A ADC serial data MSB first