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CDS-3310 Functional Elements
The CDS-3310 controller circuitry can be divided into the following functional groups as shown in
Figure 1.1 and discussed below.
Microcomputer Section
The main processing unit of the CDS-3310 is a specialized 32-Bit Motorola 68331 Series
Microcomputer with 4 Meg RAM and 4 Meg Flash EEPROM. The RAM provides memory for
variables, array elements and application programs. The flash EEPROM provides non-volatile storage
of variables, programs, and arrays. It also contains the CDS-3310 firmware.
Motor Interface
Galil's GL-1800 custom, sub-micron gate array performs quadrature decoding of each encoder at up to
12 MHz. For standard servo operation, the controller generates a +/-10 Volt analog signal (16 Bit
DAC).
Communication
The communication interface with the CDS-3310 consists of a RS-232 port and 10/100 BaseT Ethernet
port. The RS-232 channel can generate up to 19.2Kbaud.
General I/O
The CDS-3310 provides interface circuitry for 8 TTL inputs and 10 TTL outputs. The CDS-3310 also
has an additional 40 I/O daughterboard (DB-28040) that can be ordered as an option. General input 1
can also be used a the high speed position latch. A high speed encoder compare output is also
provided.
CDS-3310
Figure 1.1 - CDS-3310 Functional Elements
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Chapter 1 Overview
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