MC908AP32CFBE Freescale, MC908AP32CFBE Datasheet - Page 72
MC908AP32CFBE
Manufacturer Part Number
MC908AP32CFBE
Description
Manufacturer
Freescale
Datasheet
1.MC908AP32CFBE.pdf
(324 pages)
Specifications of MC908AP32CFBE
Cpu Family
HC08
Device Core Size
8b
Frequency (max)
8MHz
Interface Type
SCI/SPI
Total Internal Ram Size
2KB
# I/os (max)
32
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
44
Package Type
PQFP
Program Memory Type
Flash
Program Memory Size
32KB
Lead Free Status / RoHS Status
Compliant
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Oscillator (OSC)
5.2.1 CGM Reference Clock Selection
The clock generator module (CGM) reference clock (CGMXCLK) is the reference clock input to the MCU.
It is selected by programming two bits in a FLASH memory location; the mask option register (MOR), at
$FFCF. See
72
3.5 Mask Option Register
Address:
OSCSEL1
OSCSEL0
Erased:
Reset:
Read:
MOR
Write:
OSCSEL1 OSCSEL0
X-TAL OSCILLATOR
$FFCF
Bit 7
R
1
OSC1
Figure 5-1. Oscillator Module Block Diagram
To CGM and others
Figure 5-2. Mask Option Register (MOR)
= Reserved
X
XCLK
6
1
MC68HC908AP Family Data Sheet, Rev. 4
MUX
OSC2
CGMXCLK
RC
(MOR).
R
5
1
I
To CGM PLL
RC OSCILLATOR
CGMRCLK
Unaffected by reset
R
4
1
RCCLK
R
3
1
BUS CLOCK
X
To TBM
INTERNAL OSCILLATOR
MUX
R
2
1
OSCCLK
RC
From SIM
ICLK
I
R
1
1
To SIM
(and COP)
OSCCLK1
OSCCLK0
CONFIG2
Freescale Semiconductor
Bit 0
R
1
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