User's Manual

PMAC2A PC104 Hardware Reference Manual
ii Table of Contents
Effects of Changing I900 on the System .............................................................................................................18
How does changing I900 effect other settings in PMAC ....................................................................................20
Effects of Output Resolution and Servo Interrupt Frequency on Servo Gains....................................................21
Using Flag I/O as General-Purpose I/O...................................................................................................................22
Analog Inputs Setup ................................................................................................................................................22
CPU Analog Inputs.............................................................................................................................................22
HARDWARE REFERENCE SUMMARY .............................................................................................................23
Board Dimensions...................................................................................................................................................23
From v106 to 107................................................................................................................................................23
From v107 to 108................................................................................................................................................24
From v108 to 109................................................................................................................................................25
Board Layout...........................................................................................................................................................26
Connectors and Indicators.......................................................................................................................................27
J3 - Machine Connector (JMACH1 Port)...........................................................................................................27
J4 - Machine Connector (JMACH2 Port)...........................................................................................................27
J8 - Serial Port (JRS232 Port)............................................................................................................................27
TB1 – Power Supply Terminal Block (JPWR Connector) ..................................................................................27
LED Indicators ...................................................................................................................................................27
E-POINT JUMPER DESCRIPTIONS ....................................................................................................................29
E0: Forced Reset Control .......................................................................................................................................29
E1: Servo and Phase Clock Direction Control .......................................................................................................29
E2: CPU Frequency Select.....................................................................................................................................29
E3: Normal/Re-Initializing Power-Up/Reset..........................................................................................................29
E4: CPU Frequency Select.....................................................................................................................................30
E8: Phase Clock Lines Output Enable....................................................................................................................30
E9: Servo Clock Lines Output Enable....................................................................................................................30
E10 – E12: Power-Up State Jumpers .....................................................................................................................30
E13: Power-Up/Reset Load Source........................................................................................................................31
E14: Watchdog Disable Jumper .............................................................................................................................31
E15A, B, C: Flash Memory Bank Select................................................................................................................31
E16: ADC Inputs Enable.........................................................................................................................................31
E18 – E19: PC/104 Bus Address............................................................................................................................32
E20-E23: ENCODER SINGLE ENDED/DIFFERENTIAL SELECT (Note: v107 and above only) ..............32
CONNECTOR PINOUTS.........................................................................................................................................33
TB1 (JPWR): Power Supply ..................................................................................................................................33
J4 (JRS232) Serial Port Connector..........................................................................................................................33
J3 (JMACH1): Machine Port Connector.................................................................................................................34
J3 JMACH1 (50-Pin Header) ..................................................................................................................................35
J4 (JMACH2): Machine Port CPU Connector ........................................................................................................36
SCHEMATICS ..........................................................................................................................................................38