MC912DG128A Motorola, MC912DG128A Datasheet - Page 288

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

Memory Map
MSCAN Controller
MC68HC912DT128A Rev 2.0
288
The msCAN12 occupies 128 bytes in the CPU12 memory space. The
background receive buffer can only be read in test mode.
Time Segment 1
Figure 49 CAN Standard Compliant Bit Time Segment Settings
5 .. 10
4 .. 11
5 .. 12
6 .. 13
7 .. 14
8 .. 15
9 .. 16
Transmit point
SYNC
_SEG
1
Figure 48 Segments within the Bit Time
NRZ Signal
MSCAN Controller
TSEG1
3 .. 10
5 .. 12
6 .. 13
7 .. 14
8 .. 15
4 .. 11
4 .. 9
(PROP_SEG + PHASE_SEG1)
8... 25 Time Quanta
= 1 Bit Time
Time Segment 2
Time segment 1
4 ... 16
2
3
4
5
6
7
8
TSEG2
1
2
3
4
5
6
7
Sample point
(single or triple sampling)
(PHASE_SEG2)
Jump Width
Time Seg. 2
Synchron.
1 .. 2
1 .. 3
1 .. 4
1 .. 4
1 .. 4
1 .. 4
1 .. 4
2 ... 8
MOTOROLA
20-mscan12
SJW
0 .. 1
0 .. 2
0 .. 3
0 .. 3
0 .. 3
0 .. 3
0 .. 3