s908gz60cfa Freescale Semiconductor, Inc, s908gz60cfa Datasheet - Page 158

• Manufacturer Part Number: s908gz60cfa
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MSCAN08 Controller (MSCAN08)
CLKSRC — Clock Source
12.13.3 MSCAN08 Bus Timing Register 0
SJW1 and SJW0 — Synchronization Jump Width
BRP5–BRP0 — Baud Rate Prescaler
158
This flag defines which clock source the MSCAN08 module is driven from (see
The synchronization jump width (SJW) defines the maximum number of time quanta (T
by which a bit may be shortened, or lengthened, to achieve resynchronization on data transitions on
the bus (see
These bits determine the time quanta (T
according to
1 = The MSCAN08 clock source is CGMOUT (see
0 = The MSCAN08 clock source is CGMXCLK/2 (see
Address:
The CMCR1 register can be written only if the SFTRES bit in the MSCAN08
module control register is set
Reset:
Table
Read:
Table
Write:
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
BRP5
12-7.
12-6).
0
0
0
0
1
:
:
$0502
SJW1
Bit 7
0
SJW1
Figure 12-18. Bus Timing Register 0 (CBTR0)
0
0
1
1
BRP4
Table 12-6. Synchronization Jump Width
0
0
0
0
1
:
:
SJW0
6
0
Table 12-7. Baud Rate Prescaler
BRP3
0
0
0
0
1
:
:
BRP5
5
0
q
) clock, which is used to build up the individual bit timing,
BRP2
NOTE
0
0
0
0
1
:
:
SJW0
BRP4
4
0
0
1
0
1
BRP1
Figure
0
0
1
1
1
:
:
BRP3
Figure
3
0
12-8).
BRP0
0
1
0
1
1
12-8).
Synchronization
:
:
BRP2
Jump Width
2
0
1 T
2 T
3 T
4 T
q
q
q
q
cycle
cycle
cycle
cycle
Prescaler
Value (P)
BRP1
64
1
2
3
4
1
0
:
:
12.10 Clock
Freescale Semiconductor
BRP0
Bit 0
0
q
) clock cycles
System).