[Canxlam](Local Acceptance Mask Register) - Toshiba TXZ+ Series Reference Manual

[CANxLAM](Local Acceptance Mask Register)

Bit Bit Symbol After Reset Type
31 LAMI 0
30:29 - 0
28:0 LAM[28:0] 0
The local acceptance mask register [CANxLAM] will only be used for filtering of the receiving message ID for
mailbox 31. This feature allows locally masking to any ID bits of the receiving message for mailbox 31.
In the extended format, [CANxMBnID]< ID[28:0] > and < LAM[28:0] > are used to filtering.
In the standard format, [CANxMBnID]< ID[28:18] > and < LAM[28:18] > are used to filtering.
When the message in a standard format is received, the part of the extended ID (<ID[17:0]>) will become an
undefined value. Therefore, receiving the standard and the extended format alternately in the same mailbox is not
recommended.
Please set [CANxLAM] when initialization (At the configuration mode) and do not change the setting while
operating.
When the setting is changed while receiving the message, the [CANxLAM] value on the way of the setting change
is used to filtering of reception message ID.
Mask of the ID extension bit<IDE> (mailbox 31)
0: Not masked
1: Masked
In case of <LAMI>=0, the message in the standard or the extended format is received, according
R/W
to the <IDE> bit of the mailbox 31.
In case of <LAMI>=1, the message in the standard and the extended format is received,
regardless of the <IDE> bit of the mailbox 31.
R Read as "0"
Mask of receive message ID
0: Not masked
The reception message is received when the corresponding bit of reception message ID is the
R/W same as mailbox ID.
1: Masked
The reception message is received regardless of the value of the corresponding bit of reception
message.
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Function
TXZ+ Family
CAN Controller
2020-10-01
Rev. 1.0