MC68HC05X16 Datasheet, PDF (77/232 Pages) Freescale Semiconductor, Inc – High-density complementary metal oxide semiconductor HCMOS) microcontroller unit

Freescale Semiconductor, Inc.
Table 5-1 Synchronization jump width
SJW1
0
0
1
1
SJW0
0
1
0
1
Synchronization jump width
1 t_SCL cycle
2 t_SCL cycles
3 t_SCL cycles
4 t_SCL cycles
BRP5 – BRP0 — Baud rate prescaler bits
These bits determine the MCAN system clock cycle time (t_SCL), which is used to build up the
individual bit timing, according to Table 5-2 and the formula in Figure 5-4.
5
Table 5-2 Baud rate prescaler
BRP5
0
0
0
0
:
:
1
BRP4
0
0
0
0
:
:
1
BRP3
0
0
0
0
:
:
1
BRP2
0
0
0
0
:
:
1
BRP1
0
0
1
1
:
:
1
BRP0
0
1
0
1
:
:
1
Prescaler value (P)
1
2
3
4
:
:
64
f_osc
OSC1
Divide by
2
f_osc/2
Divide by
f_OP
10, 8, 4 or 2
Prescaler (P)
2P
t_SCL = _fosc
MCAN module system clock
MCU bus clock
Figure 5-4 Oscillator block diagram
MC68HC05X16
MOTOROLA CAN MODULE (MCAN)
For More Information On This Product,
5-15
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