STMicroelectronics SPC572L series Reference Manual page 1391

RM0400
Field
Successive Calibration Check (Option 2 of SAE SENT Spec) Resynchronized. This bit indicates that
Successive Calibration Check (Option 2 of SAE Spec) has failed three times and has
resynchronized to assume 3
4
calibration check error will also be asserted during re-synchronization (to indicate the 3
CAL_RESY
detected).
NC
0 – No interrupt
1 – Interrupt Status condition has occurred
Calibration Variation 20 – 25% Interrupt Status. This bit indicates that the calibration pulse received
on this channel has variation in between ±20% to ±25% from 56 ticks.
5
CAL_20_25
0 – No Interrupt
1 – Interrupt Status condition has occurred
Slow Serial Message Overflow Status. This bit indicates overflow occurred on this channel. Overflow
will cause the older messages (which are not read out) to be overwritten with newly received
messages. However, any message that is currently being read out by DMA or CPU will not get over-
6
written.
SMSG_OFL
W
0 – No Interrupt
1 – Interrupt Status condition has occurred
Fast Message Overflow Status. This bit indicates overflow occurred on this channel. Overflow
happens when effective data read rate by CPU is slower than data receive rate on channel. On
overflow, new incoming messages will overwrite the previous messages (that are not read out)
7
stored in the receiver buffers. However, any message that is currently being read out by DMA or
FMSG_OFL
CPU will not get over-written.
W
0 – No Interrupt
1 – Interrupt Status condition has occurred
8 Reserved. Read returns zero
Table 808. CHn_STATUS field descriptions(Continued)
rd
message to be correct and will be received. The successive
DocID027809 Rev 4
Description
SENT Receiver (SRX)
rd
error being
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