mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 455
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mc9s12hz256v2
Manufacturer Part Number
mc9s12hz256v2
Description
Hcs12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12HZ256V2.pdf
(692 pages)
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15.3.2.9
PWMSCLA is the programmable scale value used in scaling clock A to generate clock SA. Clock SA is
generated by taking clock A, dividing it by the value in the PWMSCLA register and dividing that by two.
Any value written to this register will cause the scale counter to load the new scale value (PWMSCLA).
Read: anytime
Write: anytime (causes the scale counter to load the PWMSCLA value)
15.3.2.10 PWM Scale B Register (PWMSCLB)
PWMSCLB is the programmable scale value used in scaling clock B to generate clock SB. Clock SB is
generated by taking clock B, dividing it by the value in the PWMSCLB register and dividing that by two.
Any value written to this register will cause the scale counter to load the new scale value (PWMSCLB).
Read: anytime
Write: anytime (causes the scale counter to load the PWMSCLB value).
Freescale Semiconductor
Reset
Reset
W
W
R
R
Clock SA = Clock A / (2 * PWMSCLA)
Clock SB = Clock B / (2 * PWMSCLB)
Bit 7
Bit 7
PWM Scale A Register (PWMSCLA)
0
0
7
7
When PWMSCLA = 0x0000, PWMSCLA value is considered a full scale
value of 256. Clock A is thus divided by 512.
When PWMSCLB = 0x0000, PWMSCLB value is considered a full scale
value of 256. Clock B is thus divided by 512.
0
0
6
6
6
6
Figure 15-11. PWM Scale A Register (PWMSCLA)
Figure 15-12. PWM Scale B Register (PWMSCLB)
MC9S12HZ256 Data Sheet, Rev. 2.05
0
0
5
5
5
5
NOTE
NOTE
0
0
4
4
4
4
0
0
3
3
3
3
Chapter 15 Pulse-Width Modulator (PWM8B6CV1)
0
0
2
2
2
2
0
0
1
1
1
1
Bit 0
Bit 0
0
0
0
0
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