16.11.3.2 V2.0 part B
• Bit 31:3 – IDT28:0: Identifier Tag
Identifier field of the remote or data frame to send.
This field is updated with the corresponding value of the remote or data frame received.
• Bit 2 – RTRTAG: Remote Transmission Request Tag
RTR bit of the remote or data frame to send.
This tag is updated with the corresponding value of the remote or data frame received. In case of Automatic Reply mode,
this bit is automatically reset before sending the response.
• Bit 1 – RB1TAG: Reserved Bit 1 Tag
RB1 bit of the remote or data frame to send.
This tag is updated with the corresponding value of the remote or data frame received.
• Bit 0 – RB0TAG: Reserved Bit 0 Tag
RB0 bit of the remote or data frame to send.
This tag is updated with the corresponding value of the remote or data frame received.
16.11.4 CAN Identifier Mask Registers -
CANIDM1, CANIDM2, CANIDM3, and CANIDM4
V2.0 part A
Bit
15/7
14/6
13/5
12/4
11/3
10/2
9/1
8/0
-
-
-
-
-
-
-
-
RTRMSK
-
IDEMSK CANIDM4
-
-
-
-
-
-
-
-
-
-
CANIDM3
CANIDM2
CANIDM1
IDMSK
2
IDMSK
1
IDMSK
0
8
IDMSK10 IDMSK
9
IDMSK
IDMSK
7
IDMSK
6
IDMSK
5
IDMSK
4
IDMSK3
Bit
31/23
R/W
-
30/22
29/21
R/W
-
28/20
R/W
-
27/19
R/W
-
26/18
R/W
-
25/17
R/W
-
24/16
R/W
-
Read/Write
Initial Value
R/W
-
V2.0 part B
Bit
15/7
14/6
13/5
12/4
11/3
10/2
9/1
8/0
IDMSK
4
IDMSK
3
IDMSK
2
IDMSK
1
IDMSK
0
RTRMSK
-
IDEMSK CANIDM4
IDMSK CANIDM3
IDMSK12 IDMSK11 IDMSK10 IDMSK
9
IDMSK
8
IDMSK
7
IDMSK
6
5
IDMSK20 IDMSK19 IDMSK18 IDMSK17 IDMSK16 IDMSK15 IDMSK14 IDMSK13 CANIDM2
IDMSK28 IDMSK27 IDMSK26 IDMSK25 IDMSK24 IDMSK23 IDMSK22 IDMSK21 CANIDM1
Bit
31/23
R/W
-
30/22
R/W
-
29/21
R/W
-
28/20
R/W
-
27/19
R/W
-
26/18
R/W
-
25/17
R/W
-
24/16
R/W
-
Read/Write
Initial Value
16.11.4.1 V2.0 part A
• Bit 31:21 – IDMSK10:0: Identifier Mask
●
●
0 - comparison true forced - see Section 16.5.3 “Acceptance Filter” on page 151
1 - bit comparison enabled - see Section 16.5.3 “Acceptance Filter” on page 151
• Bit 20:3 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, they must be written to zero when CANIDMn are
written.
170
ATmega16/32/64/M1/C1 [DATASHEET]
7647O–AVR–01/15
MICROCHIP [ MICROCHIP ]
