SH7058 Datasheet, PDF (580/1130 Pages) Renesas Technology Corp – Renesas SuperHTM RISC engine

and EXT_ID differ to the ones originally set as they are updated with the STD_ID,
RTR, IDE, and EXT_ID of the received message.
3. If the setting of the LAFM register that has already been set is changed, the HCAN
should be set to halt mode before changing the setting. Do not access the LAFM during
operation.
4. Do not access the undefined addresses. Correct operation cannot be guaranteed.
LAFM Field:
Register
Name
Address

Bit Bit Name
Description
MBx[15], H'110 + N×32 15 
MBx[16]
Reserved
The write value should be 0. The value
read as the initial value is not guaranteed.
14 STDID_LAFM Filter Mask Bits[10:0] for CAN Base
to 4 [10:0]
ID[10:0]
0: Corresponding bit to CAN base ID set in
mailbox is valid
1: Corresponding bit to CAN base ID set in
mailbox is invalid
3, 2 
Reserved
The write value should be 0. The value
read as the initial value is not guaranteed.
1, 0 EXTID_LAFM Filter Mask Bits[17:16] for CAN Extended
[17:16]
ID[17:16]
0: Corresponding bit to extended CAN
base ID is valid
1: Corresponding bit to extended CAN
base ID is invalid
MBx[17], H'112 + N×32 15 EXTID_LAFM Filter Mask Bits[15:0] for CAN Extended
MBx[18]
to 0 [15:0]
ID[15:0]
0: Corresponding bit to extended CAN
base ID is valid
1: Corresponding bit to extended CAN
base ID is invalid
Note: * x/N: 0 to 31 (Indicates the mailbox number)
TTT:
When the MBC bits are set to 000, this field becomes a Tx-trigger time (TTT) field. The TTT is
comprised of two 16-bit readable/writable areas.
Rev. 3.0, 09/04, page 539 of 1086