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3 response to software reset – FUJITSU C141-E090-02EN User Manual

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C141-E090-01EN

6 - 4

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

seconds.

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.

Max. 31 sec.

Max. 30 sec.

Max. 1 ms.

If the slave device is preset, DASP- 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

Figure 6.3

Response to software reset