S912XEG128J2VAL
| Model | S912XEG128J2VAL |
| Description | IC,MICROCONTROLLER,16-BIT,CPU12 CPU,CMOS,QFP,112PIN,PLASTIC |
| PDF file | Total 1327 pages (File size: 7M) |
| Chip Manufacturer | ROCHESTER |
Chapter 16 Freescale’s Scalable Controller Area Network (S12MSCANV3)
Module Base + 0x00X2
7
6
5
4
3
2
1
0
R
ID14
W
Reset:
x
x
x
x
x
x
x
x
ID13
ID12
ID11
ID10
ID9
ID8
ID7
Figure 16-28. Identifier Register 2 (IDR2) — Extended Identifier Mapping
Table 16-28. IDR2 Register Field Descriptions — Extended
Field
7:0
ID[14:7]
Description
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.
Module Base + 0x00X3
7
6
5
4
3
2
1
0
R
ID6
W
Reset:
x
x
x
x
x
x
x
x
ID5
ID4
ID3
ID2
ID1
ID0
RTR
Figure 16-29. Identifier Register 3 (IDR3) — Extended Identifier Mapping
Table 16-29. IDR3 Register Field Descriptions — Extended
Field
7:1
ID[6:0]
0
RTR
Description
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
MC9S12XE-Family Reference Manual , Rev. 1.19
634
Freescale Semiconductor
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: S12XE products in 208 MAPBGA packages
