mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 363

• Manufacturer Part Number: mc9s12hz256v2
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

12.3.3.1.2
Freescale Semiconductor
ID[10:3]
ID[6:0]
Field
Field
RTR
7:1
7:0
0
Reset:
Reset:
Reset:
W
W
W
R
R
R
Extended Format Identifier — The identifiers consist of 29 bits (ID[28:0]) for the extended format. ID28 is the
most significant bit and is transmitted first on the CAN bus during the arbitration procedure. The priority of an
identifier is defined to be highest for the smallest binary number.
Remote Transmission Request — This flag reflects the status of the remote transmission request bit in the
CAN frame. In the case of a receive buffer, it indicates the status of the received frame and supports the
transmission of an answering frame in software. In the case of a transmit buffer, this flag defines the setting of
the RTR bit to be sent.
0 Data frame
1 Remote frame
Standard Format Identifier — The identifiers consist of 11 bits (ID[10:0]) for the standard format. ID10 is the
most significant bit and is transmitted first on the CAN bus during the arbitration procedure. The priority of an
identifier is defined to be highest for the smallest binary number. See also ID bits in
IDR0–IDR3 for Standard Identifier Mapping
ID10
ID6
ID2
7
x
Figure 12-26. Identifier Register 3 (IDR3) — Extended Identifier Mapping
7
x
7
x
Table 12-29. IDR3 Register Field Descriptions — Extended
Table 12-30. IDR0 Register Field Descriptions — Standard
Figure 12-27. Identifier Register 0 — Standard Mapping
Figure 12-28. Identifier Register 1 — Standard Mapping
= Unused; always read ‘x’
ID5
ID9
ID1
6
x
6
x
6
x
MC9S12HZ256 Data Sheet, Rev. 2.05
ID4
ID8
ID0
5
x
5
x
5
x
Chapter 12 Freescale’s Scalable Controller Area Network (MSCANV2)
RTR
ID3
ID7
4
x
4
x
4
x
Description
Description
IDE (=0)
ID2
ID6
x
x
x
3
3
3
ID1
ID5
2
x
2
x
2
x
Table
ID0
ID4
12-31.
x
x
x
1
1
1
RTR
ID3
0
x
0
x
0
x
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