NEC Renesas V850/SC1 User Manual page 580

IE
0
1
• An interrupt request occurs when the IE bit is 1 under the following conditions.
• When a message is sent from the transmit message buffer
• When a message is received by the receive message buffer
• When a remote frame has been transmitted from the receive message buffer
• When a remote frame is received by the transmit message buffer when the auto
• An interrupt request does not occur when the IE bit is 1 under the following conditions.
• When a remote frame is received by the transmit message buffer when the auto
• An interrupt request occurs when the IE bit is 0 under the following conditions.
• When a remote frame is received by the receive message buffer when the auto
MOVR
0
1
• An overwrite of the message buffer occurs when the CAN module writes new data to the
message buffer or when the DN bit has already been set (1). The MOVR bit is updated
each time new data is stored in the message buffer.
RTR
0
1
• When the RTR bit has been set (1) for a transmit message, a remote frame is transmitted
instead of a data frame.
Remark DN: Bit 2 of M_STATm (see 19.5.7 CAN message status registers 00 to 31
578
CHAPTER 19 FCAN CONTROLLER (V850/SC3)
Specifies the enable/disable setting for interrupt requests
Interrupt requests disabled
Interrupt requests enabled
acknowledge function has not been set (RMDE0 bit = 0).
acknowledge function has been set (RMDE0 bit = 1)
acknowledge function has not been set (RMDE0 bit = 0).
Overwrite does not occur after DN bit is cleared
Overwrite occurs at least once after DN bit is cleared
Data frame transmit/receive
Remote frame transmit/receive
(M_STAT00 to M_STAT31).)
User's Manual U15109EJ3V0UD
Message buffer overwrite
Specification of frame type
(2/2)