User's Manual

PMAC2 PCI Hardware Reference Manual
Base Board Connector Pinouts 33
J11 JMACH3 Connector
(Continued)
Front View
Pin# Symbol Function Description Notes
92 PWMBBOT6-
DAC6B-
Output Phase B bottom Cmd. or DAC
B serial data
Programmable function control
93 PWMCTOP6+
DIR6+
Output Phase B top Cmd. or PFM
direction
Programmable function control
94 PWMCTOP6-
DIR6-
Output Phase B top Cmd. or PFM
direction
Programmable function control
95 PWMCBOT6+
PULSE6+
Output Phase B bottom Cmd. or PFM
pulse
Programmable function control
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 JMACH3 connector provides the interface pins for channels 5 and 6. It is usually connected to a breakout
board, such as one of the Acc-8x family of boards, or an application-specific interface board.
J12 (JMACH4) Connector Description
This connector is present only if Option 1 is ordered.
J12 JMACH4 Connector
Front View
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