Operations

After the slave device receives the hardware reset, the slave device shall report its presence and the result of the self-diagnostics to the master device as described below:

DASP- signal: Asserted within 450 ms.

PDIAG- signal: Negated within 1 ms and asserted within 30 seconds.

The asserted PDIAG-signal is negated 30 seconds after it is asserted if the command is not received.

Reset-

Master device

Status Reg.

BSY bit

Slave device

 

Max. 31 sec.

Checks DASP- for up to

If presence of a slave device is

confirmed, PDIAG- is checked for

500 ms.

up to 31 seconds.

 

BSY bit Max. 1 ms.

PDIAG-

Max. 30 sec.

 

DASP-

Max. 450 ms.

.

Figure 6.2 Response to hardware reset

Note: Master Device does not check the DASP signal assertion for 2ms upon receipt of hardware reset.

6-4

C141-E218

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Fujitsu MHV2060AT, MHV2100AT, MHV2080AT, MHV2120AT, MHV2040AT manual Response to hardware reset