CT2579 datasheet(21/41 Pages) AEROFLEX

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APPLICATION NOTE #108

Released 9/98

SUMMARY OF OPERATION

Device can be either RT or BC.

1. ADDR = 1 00 06 (Write)

Select offline self test.

ADDR = 1 00 07 (Write)

Select online self test.

2. ADDR = 1 00 10 (Write)

Select bus 0.

ADDR = 1 00 18 (Write)

Select bus 1.

3. ADDR = 2 01-1E 00 (Write) DATA = n

Write self test data to BCAST location.

ADDR = 0 01-1E 00 (Write) DATA = n

Write self test data to RECEIVE location.

4. ADDR = 0 00 00 (Write) DATA = 1F 0 01-1E 01

Transmit message (Bcast receive 1 word).

ADDR = 0 00 00 (Write) DATA = RTAD 0 01-1E 01

Transmit message (Receive 1 word).

5. ADDR = 2 01-1E 00 (Write) DATA = 0

Write 0 to self test location.

ADDR = 0 01-1E 00 (Write) DATA = 0

Write 0 to self test location.

6. ADDR = 2 01-1E 00 (Read) DATA = 0

Read 0 from self test location.

ADDR = 0 01-1E 00 (Read) DATA = 0

Read 0 from self test location.

7. ADDR = 2 01-1E 00 (Read) DATA = n

Read self test data after NCMDSTRB.

ADDR = 0 01-1E 00 (Read) DATA = n

Read self test data after NCMDSTRB.

8. ADDR = 0 00 00 (Read) DATA = 1F 0 01-1E 01

Read command from command memory.

or ADDR = 0 00 00 (Read) DATA = RTAD 0 01-1E 01

Read command from command memory.

9. ADDR = 1 00 08 (Write)

Disable self test.

ADDR = 0 00 01 (Read)

Read device status:

Bit 6 = Offline self test.

Bit 7 = Online self test

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