Delta Tau PMAC2 User Manual download pdf (Page 8)

Turbo PMAC2 Realtime Express Controller

Introduction

Option 5: CPU and Memory Configurations

Different versions of Option 5 provide different CPU speeds and main memory sizes. Only one

Option 5xx may be selected for the board. The CPU is a DSP563xx IC as component U1. The

CPU is available in two speed options: 80MHz CPU is a DSP56303 (Option 5C0), 240 MHz

CPU is a DSP56321 (Option 5F3). The Maximum frequency of operation is indicated with a

sticker on the CPU in U1.

The compiled/assembled-program memory SRAM ICs are located in U30, U31, and U32. 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 U27, U28, and U29. 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 U26. 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: Default CPU speed and memory configuration: 80MHz DSP56303 CPU

(8Kx24 internal memory), 128Kx24 SRAM compiled/assembled program memory,

128Kx24 SRAM user data memory, 1Mx8 flash memory.

 Option 5C3: Default CPU speed and memory configuration: 80MHz DSP56303 CPU

(8Kx24 internal memory), expanded 512Kx24 SRAM compiled/assembled program

memory, expanded 512Kx24 SRAM user data memory, 4Mx8 flash memory.

 Option 5F3: 240MHz DSP56321 CPU (192Kx24 internal memory), expanded 512Kx24

SRAM compiled/assembled program memory, expanded 512Kx24 SRAM user data

memory, 4Mx8 flash memory.

Option 10: Firmware Version Specification

Normally the Turbo PMAC2 Eth Ultralite is provided with the newest released firmware version.

The response to the VERSION query command shows which firmware revision is presently

installed. Option 10 provides for a user-specified firmware version.

Option 12: Analog-to-Digital and Digital-to-Analog Converters

Option 12 permits the installation of two channels of on-board analog-to-digital converters and

one channel of on-board digital-to-analog converter.

The analog inputs are not optically isolated, and each can have a +/- 10V input range, or a +/-5V

input range if differential signal is used, individually selectable with a 12-bit resolution.

The analog output is a 12-bit DAC have +/-10V output range.

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Delta Tau PMAC2 User Manual Page 8