MEGA128CAN Datasheet, PDF (257/413 Pages) ATMEL Corporation – Microcontroller WITH 128K BYTES OF ISP FLASH AND CAN CONTROLLER

AT90CAN128
CAN Identifier Tag Registers -
CANIDT1, CANIDT2, CANIDT3,
and CANIDT4
V2.0 part A
Bit
15/7
-
-
IDT2
IDT10
Bit
31/23
Read/Write
R/W
Initial Value
-
V2.0 part B
Bit
15/7
IDT4
IDT12
IDT20
IDT28
Bit
31/23
Read/Write
R/W
Initial Value
-
14/6
-
-
IDT1
IDT9
30/22
R/W
-
14/6
IDT3
IDT11
IDT19
IDT27
30/22
R/W
-
13/5
-
-
IDT0
IDT8
29/21
R/W
-
13/5
IDT2
IDT10
IDT18
IDT26
29/21
R/W
-
12/4
-
-
-
IDT7
28/20
R/W
-
12/4
IDT1
IDT9
IDT17
IDT25
28/20
R/W
-
11/3
-
-
-
IDT6
27/19
R/W
-
10/2
RTRTAG
-
-
IDT5
26/18
R/W
-
9/1
-
-
-
IDT4
25/17
R/W
-
8/0
RB0TAG
-
-
IDT3
24/16
R/W
-
CANIDT4
CANIDT3
CANIDT2
CANIDT1
11/3
IDT0
IDT8
IDT16
IDT24
27/19
R/W
-
10/2
9/1
8/0
RTRTAG RB1TAG RB0TAG
IDT7
IDT6
IDT5
IDT15
IDT23
IDT14
IDT22
IDT13
IDT21
26/18
R/W
25/17
R/W
24/16
R/W
-
-
-
CANIDT4
CANIDT3
CANIDT2
CANIDT1
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.
• 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.
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.
4250E–CAN–12/04
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