Renesas RX Series

R01UH0823EJ0100 Rev.1.00 Page 1227 of 1823
Jul 31, 2019
RX23W Group 36. CAN Module (RSCAN)
36.2.37 Receive FIFO Access Register mAL (RFIDLm) (m = 0, 1)
This register can be read when the GRWCR.RPAGE bit is 1.
RFID[15:0] Bits (Receive FIFO Buffer ID Data L)
These bits indicate the ID of the message stored in the receive FIFO buffer.
36.2.38 Receive FIFO Access Register mAH (RFIDHm) (m = 0, 1)
This register can be read when the GRWCR.RPAGE bit is 1.
RFID[28:16] Bits (Receive FIFO Buffer ID Data H)
These bits indicate the ID of the message stored in the receive FIFO buffer.
RFRTR Bit (Receive FIFO Buffer RTR)
This bit indicates the frame format (data frame or remote frame) of the message stored in the receive FIFO buffer.
RFIDE Bit (Receive FIFO Buffer IDE)
This bit indicates the ID format (standard ID or extended ID) of the message stored in the receive FIFO buffer.
Address(es): RSCAN.RFIDL0 000A 85A0h, RSCAN.RFIDL1 000A 85B0h
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
RFID[15:0]
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b15 to b0 RFID[15:0] Receive FIFO Buffer ID Data L The standard ID or extended ID of received message can be
read.
Read bits 10 to 0 for standard ID. Bits 15 to 11 are read as 0.
R
Address(es): RSCAN.RFIDH0 000A 85A2h, RSCAN.RFIDH1 000A 85B2h
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
RFIDE RFRTR — RFID[28:16]
Value after reset:
0000000000000000
Bit Symbol Bit Name Description R/W
b12 to b0 RFID[28:16] Receive FIFO Buffer ID Data H The standard ID or extended ID of received message can be
read.
For standard ID, these bits are read as 0.
R
b13 — Reserved This bit is read as 0. R
b14 RFRTR Receive FIFO Buffer RTR 0: Data frame
1: Remote frame
R
b15 RFIDE Receive FIFO Buffer IDE 0: Standard ID
1: Extended ID
R