mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 326

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale’s Scalable Controller Area Network (S12MSCANV3)
11.3.3.1.2
326
Module Base + 0x00X0
Module Base + 0x00X1
ID[10:3]
ID[2:0]
Field
Field
RTR
IDE
7-0
7-5
4
3
Reset:
Reset:
W
W
R
R
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
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
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
ID Extended — This flag indicates whether the extended or standard identifier format is applied in this buffer. In
the case of a receive buffer, the flag is set as received and indicates to the CPU how to process the buffer
identifier registers. In the case of a transmit buffer, the flag indicates to the MSCAN what type of identifier to send.
0 Standard format (11 bit)
1 Extended format (29 bit)
IDR0–IDR3 for Standard Identifier Mapping
ID10
ID2
7
x
7
x
Table 11-31. IDR0 Register Field Descriptions — Standard
Figure 11-30. Identifier Register 0 — Standard Mapping
Figure 11-31. Identifier Register 1 — Standard Mapping
= Unused; always read ‘x’
ID9
ID1
6
x
6
x
Table 11-32. IDR1 Register Field Descriptions
S12XS Family Reference Manual, Rev. 1.10
ID8
ID0
5
x
5
x
RTR
ID7
4
x
4
x
Description
Description
IDE (=0)
ID6
x
x
3
3
ID5
2
x
2
x
Table
Table
Freescale Semiconductor
ID4
11-32.
11-31.
x
x
1
1
ID3
0
x
0
x