User's Manual

PMAC2 PCI Lite Hardware Reference Manual – Preliminary Documentation
32 Base Board Connector Pinouts
J10 JMACH2 Connector
(Continued)
Front View
Pin# Symbol Function Description Notes
81 AENA4+ Output Amplifier enable High is enable
82 AENA4- Output Amplifier enable Low is enable
83 FAULT4+ Input Amplifier fault Programmable polarity
84 FAULT4- Input Amplifier fault Programmable polarity
85 PWMATOP4+
DAC_CLK4+
Output Phase A Top CMD or DAC
clock
Programmable function
control
86 PWMATOP4-
DAC_CLK4-
Output Phase A Top CMD or DAC
clock
Programmable function
control
87 PWMABOT4+
DAC4A+
Output Phase A Bottom CMD or
DAC A serial data
Programmable function
control
88 PWMABOT4-
DAC4A-
Output Phase A Bottom CMD or
DAC A serial data
Programmable function
control
89 PWMBTOP4+
DAC_STB4+
Output Phase B Top CMD or DAC
strobe
Programmable function
control
90 PWMBTOP4-
DAC_STB4-
Output Phase B Top CMD or DAC
strobe
Programmable function
control
91 PWMBBOT4+
DAC4B+
Output Phase B Bottom CMD or
DAC B serial data
Programmable function
control
92 PWMBBOT4-
DAC4B-
Output Phase B Bottom CMD or
DAC B serial data
Programmable function
control
93 PWMCTOP4+
DIR4+
Output Phase B Top CMD or PFM
direction
Programmable function
control
94 PWMCTOP4-
DIR4-
Output Phase B Top CMD or PFM
direction
Programmable function
control
95 PWMCBOT4+
PULSE4+
Output Phase B Bottom CMD or
PFM pulse
Programmable function
control
96 PWMCBOT4-
PULSE4-
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 JMACH2 connector provides the interface pins for channels 3 and 4. Usually, it is connected to a
breakout board, such as one of the Acc-8x family of boards, or an application-specific interface board.