Response To Diagnostic Command - Fujitsu MPA3017AT Product Manual

6.1.4

Response to diagnostic command

When the master device receives an EXECUTE DEVICE DIAGNOSTIC command and the slave
device is present, the master device checks the PDIAG- signal for up to 6 seconds to see if the
slave device has completed the self-diagnosis successfully.
The master device does not check the DASP- signal.
After the slave device receives the EXECUTE DEVICE DIAGNOSTIC command, it shall report
the result of the self-diagnostics to the master device as described below:
PDIAG- signal: negated within 1 ms and asserted within 5 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.
X'1F7' Reg.
Write
Master device
Status Reg.
BSY bit
Slave device
BSY bit
PDIAG-
DASP-
If the slave device is preset, DASP- signal is checked for up to
6 seconds.
Max. 1 ms.
Figure 6.4

Response to diagnostic command

C141-E034-02EN
Max. 6 sec.
Max. 5 sec.
6 - 5