mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 988

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 21 Freescale’s Scalable Controller Area Network (S12MSCANV2)
21.3.3.2
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
988
Module Base + 0x00X2
Module Base + 0x00X3
DB[7:0]
Field
7-0
Reset:
Reset:
Reset:
W
W
R
R
Figure 21-33. Data Segment Registers (DSR0–DSR7) — Extended Identifier Mapping
W
R
Data bits 7-0
Data Segment Registers (DSR0-7)
7
x
7
x
DB7
7
x
Figure 21-31. Identifier Register 2 — Standard Mapping
Figure 21-32. Identifier Register 3 — Standard Mapping
= Unused; always read ‘x’
= Unused; always read ‘x’
Table 21-32. DSR0–DSR7 Register Field Descriptions
6
x
6
x
DB6
x
6
MC9S12XF - Family Reference Manual, Rev.1.19
5
x
5
x
DB5
5
x
4
x
4
x
DB4
Description
4
x
x
x
DB3
3
3
x
3
DB2
2
x
2
x
2
x
Freescale Semiconductor
DB1
x
x
1
1
1
x
DB0
0
x
0
x
x
0