Delta Tau Turbo PMAC PCI-Lite, Hardware Reference Manual

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Turbo PMAC PCI Lite
2 Introduction
Option 5: CPU and Memory Configurations
The various versions of Option 5 provide different CPU speeds and main memory sizes integrated on the
main board. Only one Option 5xx may be selected for the board.
The CPU is a DSP563x IC as component U127. The CPU is available in different speeds and with
different internal memory sizes.
The compiled/assembled-program memory SRAM ICs are located in U141, U144 and U148. These ICs
form the active memory for the firmware, compiled PLCs, and user-written phase/servo algorithms.
These can be 128k x 8 ICs (for a 128k x 24 bank), fitting in the smaller footprint, or they can be the larger
512k x 8 ICs (for a 512k x 24 bank), fitting in the full footprint.
The user-data memory SRAM ICs are located in U140, U143, and U147. These ICs form the active
memory for user motion programs, uncompiled PLC programs, and user tables and buffers. These can be
128k x 8 ICs (for a 128k x 24 bank), fitting in the smaller footprint, or they can be the larger 512k x 8 ICs
(for a 512k x 24 bank), fitting in the full footprint.
The flash memory IC is located in U146. This IC forms the non-volatile memory for the board’s
firmware, the user setup variables, and for user programs, tables, and buffers. It can be 1M x 8, 2M x 8,
or 4M x 8 in capacity.
Option 5C0 is the standard CPU and memory configuration. It is provided automatically if no Option
5xx is specified. It provides an 80 MHz
DSP56303
CPU (120 MHz PMAC equivalent), 128k x24 of
compiled/assembled program memory, 128k x 24 of user data memory and a 1M x 8 flash memory.
Option 5C3 provides an 80 MHz
DSP56303
CPU (120 MHz PMAC equivalent) with 8k x 24 of
internal memory, an expanded 512k x 24 of compiled/assembled program memory, an expanded 512k
x 24 of user data memory, and a 4M x 8 flash memory.
Option 5E0 provides a 160 MHz
DSP56311
CPU (240 MHz PMAC equivalent) with 128k x 24 of
internal memory, 128k x 24 of compiled/assembled program memory, 128k x 24 of user data memory
and a 1M x 8 flash memory.
Option 5E3 provides a 160 MHz
DSP56311
CPU (240 MHz PMAC equivalent) with 128k x 24 of
internal memory, 512k x 24 of compiled/assembled program memory, 512k x 24 of user data memory
and a 4M x 8 flash memory.
Option 8: High-Accuracy Clock Crystal
The Turbo PMAC PCI Lite has a clock crystal (component Y1) of nominal frequency 19.6608 MHz (~20
MHz). The standard crystal’s accuracy specification is +/-100 ppm.
Option 8A provides a nominal 19.6608 MHz crystal with a +/-15 ppm accuracy specification.
Option 9T: Auxiliary Serial Port
Option 9T adds an auxiliary RS-232 port on the CPU piggyback board. The key components added are
IC U22 and connector J8 on the CPU board.
Option 10: Firmware Version Specification
Normally the Turbo PMAC PCI Lite is provided with the newest released firmware version. A label on
the U146 flash memory IC shows the firmware version loaded at the factory.
Option 10 provides for a user-specified firmware version.
Option 12: Analog-to-Digital Converters
Option 12 permits the installation of 8 or 16 channels of on-board multiplexed analog-to-digital
converters. One or two of these converters are read every phase interrupt. The analog inputs are not
optically isolated and each can have a 0 – 5V input range, or a +/-2.5V input range, individually
selectable.