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Chapter 3 Functional Description

3.5 Serial I/O

The DUART has two serial channels, several multipurpose I/O lines, and a 16-bit counter/timer. The timebase comes from a 3.6864 MHz clock generator.

Channel A is available at a connector on the front panel and has a RS-232 interface. The RS-232 driver circuit uses the single 5 volt supply to generate the ±10 volt supply voltages.
Channel B is available via the VMEbus P2 connector at TTL level.

The multipurpose I/O lines are used for controlling several functions on the board and are discussed in paragraph 5.7

CC175 - Dual Channel Intelligent CAN Interface for VMEbus - 30 SEP 1996
Copyright © 1996 Compcontrol, Inc.

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