16.11.3 CAN Identifier Tag Registers -
CANIDT1, CANIDT2, CANIDT3, and CANIDT4
V2.0 part A
Bit
15/7
14/6
13/5
12/4
11/3
10/2
9/1
8/0
-
-
-
-
-
-
-
-
-
-
-
-
RTRTAG
-
-
-
RB0TAG CANIDT4
-
-
-
-
CANIDT3
CANIDT2
CANIDT1
IDT
2
IDT
1
9
IDT
0
8
IDT10
31/23
R/W
-
IDT
IDT
IDT
7
IDT
6
IDT5
IDT
25/17
R/W
-
4
IDT3
Bit
30/22
R/W
-
29/21
R/W
-
28/20
R/W
-
27/19
R/W
-
26/18
R/W
-
24/16
R/W
-
Read/Write
Initial Value
V2.0 part B
Bit
15/7
14/6
13/5
12/4
11/3
10/2
9/1
8/0
IDT
4
IDT
3
IDT
2
IDT
1
9
IDT
0
8
RTRTAG RB1TAG RB0TAG CANIDT4
IDT12
IDT20
IDT28
31/23
R/W
-
IDT11
IDT19
IDT27
30/22
R/W
-
IDT10
IDT18
IDT26
29/21
R/W
-
IDT
IDT
IDT7
IDT6
IDT5
CANIDT3
CANIDT2
CANIDT1
IDT17
IDT25
28/20
R/W
-
IDT16
IDT24
27/19
R/W
-
IDT15
IDT23
26/18
R/W
-
IDT14
IDT22
25/17
R/W
-
IDT13
IDT21
24/16
R/W
-
Bit
Read/Write
Initial Value
16.11.3.1 V2.0 part A
• Bit 31:21 – IDT10:0: 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 20:3 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, they must be written to zero when CANIDTn are
written.
When a remote or data frame is received, these bits do not operate in the comparison but they are updated with un-predicted
values.
• 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 – Reserved Bit
This bit is reserved for future use. For compatibility with future devices, it must be written to zero when CANIDTn are written.
When a remote or data frame is received, this bit does not operate in the comparison but it is updated with un-predicted
values.
• 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.
ATmega16/32/64/M1/C1 [DATASHEET]
169
7647O–AVR–01/15
MICROCHIP [ MICROCHIP ]
