EMC2101_09 Datasheet, PDF (29/57 Pages) SMSC Corporation – SMBus Fan Control with 1°C Accurate Temperature Monitoring

SMBus Fan Control with 1°C Accurate Temperature Monitoring
Datasheet
5.7
Fault Queue
The EMC2101 supports a Fault Queue feature to reduce interrupts caused by spurious temperature
readings. This feature, (see Section 6.5), will not trigger an interrupt until the device has measured
three consecutive out-of-limit HIGH, LOW, or T_CRIT temperature readings. Figure 5.8 shows an
example of this behavior. The Fault Queue only applies to the External Diode channels.
Temp
TLIMIT
2 consecutive
errors
3 consecutive
errors
Status Register -
ETDS high
n n+1 n+2 n+3 n+4 n+5 n+6 n+7 n+8
Readings
Figure 5.8 Example Fault Queue Response
SMSC EMC2101
29
DATASHEET
Revision 2.54 (06-16-09)