MC9S08JM60CLH Freescale, MC9S08JM60CLH Datasheet - Page 211
MC9S08JM60CLH
Manufacturer Part Number
MC9S08JM60CLH
Description
Manufacturer
Freescale
Datasheet
1.MC9S08JM60CLH.pdf
(388 pages)
Specifications of MC9S08JM60CLH
Cpu Family
HCS08
Device Core Size
8b
Frequency (max)
24MHz
Interface Type
SCI/SPI
Total Internal Ram Size
4KB
# I/os (max)
51
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
12-chx12-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
64
Package Type
LQFP
Program Memory Type
Flash
Program Memory Size
60KB
Lead Free Status / RoHS Status
Compliant
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In this particular case, the MCU has been attached to a PCB and the entire assembly is undergoing final
test with automated test equipment. A separate signal or message is provided to the MCU operating under
user provided software control. The MCU initiates a trim procedure as outlined in
tester supplies a precision reference signal.
If the intended bus frequency is near the maximum allowed for the device, it is recommended to trim using
a reference divider value (RDIV setting) of twice the final value. After the trim procedure is complete, the
reference divider can be restored. This will prevent accidental overshoot of the maximum clock frequency.
Freescale Semiconductor
Initial conditions:
1) Clock supplied from ATE has 500 μs duty period
2) MCG configured for internal reference with 8MHz bus
INCREASES THE FREQUENCY)
(DECREASING TRMVAL
TRMVAL - 256/ (2**n)
COUNT < EXPECTED = 500
(RUNNING TOO SLOW)
TRMVAL =
n = n + 1
IS n > 9?
MC9S08JM60 Series Data Sheet, Rev. 3
(COUNT = # OF BUS CLOCKS / 8)
DECREASES THE FREQUENCY)
Figure 12-13. Trim Procedure
NO
START TRIM PROCEDURE
INCOMING CLOCK WIDTH
(INCREASING TRMVAL
TRMVAL + 256/ (2**n)
TRMVAL = $100
CASE STATEMENT
TRMVAL =
MEASURE
YES
n=1
.
COUNT > EXPECTED = 500
(RUNNING TOO FAST)
COUNT = EXPECTED = 500
Multi-Purpose Clock Generator (S08MCGV1)
Figure 12-13
NON-VOLATILE MEMORY
STORE MCGTRM AND
FTRIM VALUES IN
CONTINUE
while the
211
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