Functional Operation
17-26
ADSP-BF50x Blackfin Processor Hardware Reference
CAN_GIS
(and
CAN_GIF
) is reset and the error-passive mode is still
active, this bit is not set again. If the module leaves the error-pas-
sive mode, the bit in
CAN_GIS
(and
CAN_GIF
) remains set.
•
Error warning receive interrupt
(
EWRIM
,
EWRIS
,
EWRIF
)
The CAN receive error counter (
RXECNT
) has reached the warning
limit. If the bit in
CAN_GIS
(and
CAN_GIF
) is reset and the error
warning mode is still active, this bit is not set again. If the module
leaves the error warning mode, the bit in
CAN_GIS
(and
CAN_GIF
)
remains set.
•
Error warning transmit interrupt
(
EWTIM
,
EWTIS
,
EWTIF
)
The CAN transmit error counter (
TXECNT
) has reached the warning
limit. If the bit in
CAN_GIS
(and
CAN_GIF
) is reset and the error
warning mode is still active, this bit is not set again. If the module
leaves the error warning mode, the bit in
CAN_GIS
(and
CAN_GIF
)
remains set.
Event Counter
For diagnostic functions, it is possible to use the universal counter as an
event counter. The counter can be programmed in the 4-bit
UCCNF[3:0]
field of
CAN_UCCNF
to increment on one of these conditions:
•
UCCNF[3:0] = 0x6
– CAN error frame. Counter is incremented if
there is an error frame on the CAN bus line.
•
UCCNF[3:0] = 0x7
– CAN overload frame. Counter is incremented
if there is an overload frame on the CAN bus line.
•
UCCNF[3:0] = 0x8
– Lost arbitration. Counter is incremented every
time arbitration on the CAN line is lost during transmission.
Summary of Contents for EZ-KIT Lite ADSP-BF506F
Page 50: ...Contents l ADSP BF50x Blackfin Processor Hardware Reference ...
Page 92: ...Development Tools 1 30 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 110: ...Interface Overview 3 12 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 236: ...Internal Flash Memory Control Registers 6 92 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 650: ...Programming Examples 15 56 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 804: ...Programming Examples 17 92 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 1194: ...Programming Examples 24 90 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 1256: ...ACM Registers A 50 ADSP BF50x Blackfin Processor Hardware Reference ...
Page 1264: ...Boundary Scan Architecture B 8 ADSP BF50x Blackfin Processor Hardware Reference ...