Control Registers; Can Message Data Length Registers 00 To 31 (M_Dlc00 To M_Dlc31) - NEC Renesas V850/SC1 User Manual

19.5 Control Registers

19.5.1

CAN message data length registers 00 to 31 (M_DLC00 to M_DLC31)

The M_DLCn register sets the byte count in the data field of CAN message buffer n (n = 00 to 31). When
receiving, the receive data field's byte count is set (1).
These registers can be read/written in 8-bit units.
After reset: Undefined
7
Note
M_DLCn RFU
(n = 00 to 31)
DLC3
0
0
0
0
0
0
0
0
1
Note RFU (Reserved for Future Use) indicates a reserved bit. Always set this bit to 0 when
writing the M_DLCn register.
Register Name
M_DLC00
M_DLC01
M_DLC02
M_DLC03
M_DLC04
M_DLC05
M_DLC06
M_DLC07
M_DLC08
M_DLC09
M_DLC10
M_DLC11
M_DLC12
M_DLC13
M_DLC14
M_DLC15
576
CHAPTER 19 FCAN CONTROLLER (V850/SC3)
R/W Address: See Table 19-3
6 5 4
Note Note
RFU RFU RFU
DLC2 DLC1 DLC0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
Other than above
Table 19-3. Addresses of M_DLCn (n = 00 to 31)
Address
xx3FF804H
xx3FF824H
xx3FF844H
xx3FF864H
xx3FF884H
xx3FF8A4H
xx3FF8C4H
xx3FF8E4H
xx3FF904H
xx3FF924H
xx3FF944H
xx3FF964H
xx3FF984H
xx3FF9A4H
xx3FF9C4H
xx3FF9E4H
User's Manual U15109EJ3V0UD
3 2
Note
DLC3 DLC2
Data length code of transmit/receive message
0 bytes
1 byte
2 bytes
3 bytes
4 bytes
5 bytes
6 bytes
7 bytes
8 bytes
8 bytes regardless of DLC value
Register Name
M_DLC16 xx3FFA04H
M_DLC17 xx3FFA24H
M_DLC18 xx3FFA44H
M_DLC19 xx3FFA64H
M_DLC20 xx3FFA84H
M_DLC21 xx3FFAA4H
M_DLC22 xx3FFAC4H
M_DLC23 xx3FFAE4H
M_DLC24 xx3FFB04H
M_DLC25 xx3FFB24H
M_DLC26 xx3FFB44H
M_DLC27 xx3FFB64H
M_DLC28 xx3FFB84H
M_DLC29 xx3FFBA4H
M_DLC30 xx3FFBC4H
M_DLC31 xx3FFBE4H
1 0
DLC1 DLC0
Address