Response To Software Reset - Fujitsu MPG3XXXAH Product Manual

6.1.3

Response to software reset

The master device does not check the DASP- signal for a software reset. If a slave device is
present, the master device checks the PDIAG- signal for up to 31 seconds to see if the slave
device has completed the self-diagnosis successfully.
After the slave device receives the software reset, the slave device shall report its presence and the
result of the self-diagnostics to the master device as described below:
PDIAG- signal: negated within 1 ms and asserted within 30 seconds then negated within 31
When the IDD is set to a slave device, the IDD asserts the DASP- signal when negating the
PDIAG- signal, and negates the DASP- signal when asserting the PDIAG- signal.
X'3F6' Reg.
X"0C"
or X"04"
Master device
Status Reg.
BSY bit
Slave device
BSY bit
PDIAG-
DASP-
6 - 4
seconds.
X"00"
If the slave device is preset, DASP- is checked for up to
31 seconds.
Max. 1 ms.
Figure 6.3 Response to software reset
C141-E112-01EN
Max. 31 sec.
Max. 30 sec.