FUJITSU MHR2030AT User Manual
Page 220
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Operations
6-4
C141-E145-02EN
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 400 ms.
PDIAG- signal: Negated within 1 ms and asserted within 30 seconds.
.
Max. 31 sec.
Max. 400 ms.
Max. 30 sec.
Max. 1 ms.
If presence of a slave device is
confirmed, PDIAG- is checked for
up to 31 seconds.
Checks DASP- for up to
450 ms.
DASP-
PDIAG-
BSY bit
Reset-
Status Reg.
BSY bit
Slave device
Master device
Figure 6.2 Response to hardware reset
Note: Master Device does not check the DASP signal assertion for 2ms upon receipt of hardware
reset.
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