Turbo PMAC2 Hardware Reference Manual
INTRODUCTION
OVERVIEW
The Turbo PMAC2-PC Ultralite is a member of the Turbo PMAC family of boards optimized for
interface to the system through the MACRO ring. It contains no full channels of on-board axis
interface circuitry (which is what makes it “Ultralite”). It can command up to 32 axes through the
MACRO ring. It can also support up to 32 channels of off-board axis interface circuitry through
its expansion port, connected to ACC-24P or ACC-24P2 boards.
The Turbo PMAC2-PC Ultralite is a full-sized ISA-bus expansion card. While it is capable of
ISA bus communications, with or without the optional dual-ported RAM, it does not need to be
inserted into an ISA expansion slot. Communications can be done through an RS-232 or RS-422
serial port; standalone operation is possible.
BOARD CONFIGURATION
Base Version
The base version of the Turbo PMAC2-PC Ultralite provides
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80 MHz DSP56303 CPU (120 MHz PMAC equivalent)
128k x 24 SRAM compiled/assembled program memory (5C0)
128k x 24 SRAM user data memory (5C0)
1M x 8 flash memory for user backup & firmware (5C0)
Latest released firmware version
RS-232/422 serial interface, ISA (PC) bus interface
1 16-node MACRO interface IC
MACRO ring circuitry (without connectors; see Opts. A & C)
(No on-board axis interface circuitry)
2 channels supplemental interface circuitry, each including:
2-channel differential/single-ended encoder input
1 output command signal set, configurable as pulse-&-direction or PWM top-and-bottom
pair
Display, MACRO, muxed I/O, direct I/O interface ports
PID/notch/feedforward servo algorithms
Extended "pole-placement" servo algorithms
1-year warranty from date of shipment
One manual per set of 1 to 4 PMACs in shipment
(Cables, mounting plates, mating connectors not included)
MACRO Ring Connector Options
If a MACRO interface is desired (which is the usual reason for use of the board), at least one of
the MACRO connector options must be selected. Both may be selected.
Option A provides the MACRO-ring fiber optic SC-style interface connector. The key
component on the board is U35.
Option C provides the MACRO-ring RJ-45 electrical interface connectors. The key
components on the board are J14 and J17.
Introduction
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