CHAPTER 19 FCAN CONTROLLER (V850/SC3)
User’s Manual U15109EJ3V0UD
669
19.12.3 Receive setting
Receive messages are retrieved from the target message buffer.
Figure 19-43. Setting of Receive Operation Using Reception Completion Interrupt
START
Set RDY flag
set RDY = 1, clear RDY = 0
(SC_STATm)
End of receive operation
Yes
Receive data frame
No
Yes
Receive data frame?
Receive remote frame
: Detection methods
<1> Detect using CANn information register (CnLAST)
<2> Detect using CAN message search start/result register (CGMSS/CGMSR)
(see
Figure 19-45 Setting of CAN Message Search Start/Result Register
(CGMSS/CGMSR)
.)
No
DN = 0 (M_STATm)
Detect target message
buffer
Clear DN flag
clear DN = 1, set DN = 0
(SC_STATm)
Get data length
Transmit operation
Get data
Get time stamp
Reception completion
interrupt occurs
Remark
m = 00 to 31