7-74.
When a universal synchronous-
asynchronous receiver transmitter is used,
it functions as which of the following
devices?
1. A microprocessor
2. An I/O serial interface board
3. An I/O parallel interface board
4. A peripheral device to the
microprocessor
7-75.
The universal synchronous-asynchronous
receiver transmitter’s specific asynchronous
interfacing is controlled by which of the
following means?
1.
The bidirectional tristate data bus
2.
The I/O control printed circuit board
3.
The read/write control logic
4.
The CPU
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