upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 666

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Figure 16-63 shows the processing for a transmit message buffer (MT[2:0] bits of CnMCONFm
register = 000B).
Remark:
Caution:
666
Figure 16-63: Message Transmit Processing (Normal Operation Mode with ABT)
This processing (normal operation mode with ABT) can only be applied to message buffers
0 to 7.
For message buffers other than the ABT message buffers, refer to Figure 16-61.
Set (1) ABTTRG bit after TSTAT bit is clear (0) check TSTAT bit and set ABTTRG bit,
must be processing successively.
CnGMABT.CLEAR_ABTTRG = 0
CnMCTRLm.CLEAR_RDY = 1
Set all ABT transmit messages?
Set CnMDATAxm register
Set CnMDLCm register
Clear RTR bit of CnMCONFm
register
Set CnMIDLm and CnMIDHm
registers
CnMCTRLm.CLEAR_RDY = 0
CnGMABT.SET_ABTTRG = 1
Chapter 16 FCAN Controller
CnMCTRLm.SET_RDY = 0
User’s Manual U16702EE3V2UD00
CnMCTRLm.SET_RDY = 1
t
l
Set ABTTRG bit
Yes
ABTTRG = 0?
Clear RDY bit
Yes
Yes
Set RDY bit
TSTAT = 0?
Yes
RDY = 0?
START
.
END
.
T
T
it
t
Y
r
No
No
No
No