L9779WD datasheet(124/170 Pages) STMICROELECTRONICS

124 / 170 page

Functional description

L9779WD

124/170

DocID027452 Rev 5

RST_AB1_CNT (upstream data block 8, read command: RD_DATA8)

RST_AB1_CNT

AB1 COUNTER

Address:

Type:

Reset:

xx00 0000b (reset source: Bit 6…0: only RST_UV; RST_PRL has no effect)

W_RESP = '1':

an error occurred during the sequencer run before.

RESP_ERR = '1':

an error occurred during the actual sequencer run. The bit will be set to '1' after

receiving any incorrect answer byte and will remain '1' until the end of the actual

sequencer run (no matter if the other answer bytes in this sequencer run are correct

or not).

At the end of a sequencer run the error bit W_RESP will be set to the actual value of

RESP_ERR, and thereafter the error bit RESP_ERR will be cleared to '0'.

RESP_CNT = '11': waiting for RESP_BYTE3

RESP_CNT = '10': waiting for RESP_BYTE2 (after RESP_BYTE3 was received)

RESP_CNT = '01': waiting for RESP_BYTE1 (after RESP_BYTE2 was received)

RESP_CNT = '00': waiting for RESP_BYTE0 (after RESP_BYTE1 was received)

43210

AB1_CNT2

AB1_CNT1

AB1_CNT0

RST_CNT2

RST_CNT1

RST_CNT0

[7] 0

[6] 0

[5-3] REQU (3-0): AB1_CNT (2-0)

[2-0] RST_CNT (2-0) reset counter RST_CNT

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