Fujitsu MHU2100AT 用户手册

 

C141-E202-01EN 6-5 

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 15 
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 

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

When the IDD is set to a slave device, the IDD asserts the DASP- signal when 
negating the PDIAG- signal. 

 
 

Max. 31 sec.

Max. 30 sec.

Max. 1 ms.

If the slave device is preset, PDIAG- is checked for
up to 31 seconds.

DASP-

PDIAG-

BSY bit

X"00"

X'3F6' Reg.

X"0C"
or X"04"

Status Reg.
BSY bit

Slave device

Master device