MC68HC705X32CFU Freescale Semiconductor, MC68HC705X32CFU Datasheet - Page 77

• Manufacturer Part Number: MC68HC705X32CFU
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC705X32CFU

• Cpu Family: HC05
• Device Core Size: 8b
• Frequency (max): 4MHz
• Interface Type: SCI
• Program Memory Type: EPROM
• Program Memory Size: 32KB
• Total Internal Ram Size: 528Byte
• # I/os (max): 32
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 8-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: PQFP
• Lead Free Status / Rohs Status: Supplier Unconfirmed

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