Self-Test Descriptions,
Continued
Audio Self-Test
(T 11)
The audio self-test tests the sound chip.
The following tests are included:
Register test
Performs a write/read to registers in the 79C30 DSC chip.
Interrupt test
Enables interrupts, sends and receives an 8-byte packet by
way of internal loopback.
Audio test
The tones are only heard if the switch on the front of the
system for headphone/speaker is switched to speaker.
Synchronous
Communication
Self-Test (T 12)
This tests the synchronous communications or other options.
Setup Notes
If the Digital Services environment is used (SET DIAGENV 2), an
H3199 loopback must be used.
The following tests are included:
Checksum test
Checks the checksum; read 128-KB ROM part and verify
checksum.
Static RAM test
Checks the static RAM; write, verify, complement, verify
256-KB RAM.
MC68302 test
Performs the MC68302 test.
RAM test
Checks the RAM dual access; shared RAM bus arbitration.
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