MC68HC08GZ32 Datasheet, PDF (129/320 Pages) Freescale Semiconductor, Inc – Microcontrollers

Memory Map
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Table 12-3. Time Segment Syntax
SYNC_SEG
Transmit point
Sample point
System expects transitions to occur on the bus during this period.
A node in transmit mode will transfer a new value to the CAN bus at this point.
A node in receive mode will sample the bus at this point. If the three samples
per bit option is selected then this point marks the position of the third sample.
Table 12-4. CAN Standard Compliant Bit Time Segment Settings
Time
Segment 1
5 .. 10
4 .. 11
5 .. 12
6 .. 13
7 .. 14
8 .. 15
9 .. 16
TSEG1
4 .. 9
3 .. 10
4 .. 11
5 .. 12
6 .. 13
7 .. 14
8 .. 15
Time
Segment 2
2
3
4
5
6
7
8
TSEG2
1
2
3
4
5
6
7
Synchronized
Jump Width
1 .. 2
1 .. 3
1 .. 4
1 .. 4
1 .. 4
1 .. 4
1 .. 4
SJW
0 .. 1
0 .. 2
0 .. 3
0 .. 3
0 .. 3
0 .. 3
0 .. 3
12.11 Memory Map
The MSCAN08 occupies 128 bytes in the CPU08 memory space. The absolute mapping is
implementation dependent with the base address being a multiple of 128.
$0500
$0508
$0509
$050D
$050E
$050F
CONTROL REGISTERS
9 BYTES
RESERVED
5 BYTES
ERROR COUNTERS
2 BYTES
$0510
$0517
$0518
$053F
$0540
$054F
IDENTIFIER FILTER
8 BYTES
RESERVED
40 BYTES
RECEIVE BUFFER
$0550
$055F
$0560
$056F
$0570
$057F
TRANSMIT BUFFER 0
TRANSMIT BUFFER 1
TRANSMIT BUFFER 2
Figure 12-10. MSCAN08 Memory Map
MC68HC08GZ32 Data Sheet, Rev. 3
Freescale Semiconductor
129