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S912XHZ512F1VAG Datasheet, PDF (539/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256 | |||
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Chapter 14 Freescaleâs Scalable Controller Area Network (S12MSCANV3)
Module Base + 0x00X2
7
6
5
4
3
2
1
0
R
W
Reset:
x
x
x
x
x
x
x
x
= Unused; always read âxâ
Figure 14-32. Identiï¬er Register 2 â Standard Mapping
Module Base + 0x00X3
7
6
5
4
3
2
1
0
R
W
Reset:
x
x
x
x
x
x
x
x
= Unused; always read âxâ
Figure 14-33. Identiï¬er Register 3 â Standard Mapping
14.3.3.2 Data Segment Registers (DSR0-7)
The eight data segment registers, each with bits DB[7:0], contain the data to be transmitted or received.
The number of bytes to be transmitted or received is determined by the data length code in the
corresponding DLR register.
Module Base + 0x00X4 to Module Base + 0x00XB
7
R
DB7
W
6
DB6
5
DB5
4
DB4
3
DB3
2
DB2
1
DB1
0
DB0
Reset:
x
x
x
x
x
x
x
x
Figure 14-34. Data Segment Registers (DSR0âDSR7) â Extended Identiï¬er Mapping
Table 14-33. DSR0âDSR7 Register Field Descriptions
Field
7-0
DB[7:0]
Data bits 7-0
Description
MC9S12XHZ512 Data Sheet Rev. 1.06
Freescale Semiconductor
539
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