mc9s08ac16 Freescale Semiconductor, Inc, mc9s08ac16 Datasheet - Page 170

• Manufacturer Part Number: mc9s08ac16
• Description: Hcs08 Microcontrollers 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10 Timer/PWM (S08TPMV3)
10.3.1
In addition to
considerations when migrating from a device that uses TPMV1.
170
8
For more information, refer to Section 10.6.2.4, “Center-Aligned PWM Mode.” [SE110-TPM case 4]
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You can write to the Channel Value register (TPMxCnV) when the timer is not in input capture
mode for TPMV2, not TPMV3.
In edge- or center- aligned modes, the Channel Value register (TPMxCnV) registers only update
when the timer changes from TPMMOD-1 to TPMMOD, or in the case of a free running timer
from 0xFFFE to 0xFFFF.
Also, when configuring the TPM modules, it is best to write to TPMxSC before TPMxCnV as a
write to TPMxSC resets the coherency mechanism on the TPMxCnV registers.
Writing to the Channel Value Register (TPMxCnV)
register...
Updating the Channel Value Register (TPMxCnV)
register in edge-aligned or center-aligned modes...
Reseting the coherency mechanism for the
Channel Value Register (TPMxCnV) register...
Configuring the TPM modules...
Migrating from TPMV1
Section 10.3, “TPMV3 Differences from Previous
When...
Table 10-2. Migrating to TPMV3 Considerations
MC9S08AC16 Series Data Sheet, Rev. 0
PRELIMINARY
Timer must be in Input Capture mode.
Only occurs when the timer changes from
TPMMOD-1 to TPMMOD (or in the case of a free
running timer, from 0xFFFE to 0xFFFF).
Write to TPMxSC.
Write first to TPMxSC and then to TPMxCnV
register.
Action / Best Practice
Versions,” keep in mind the following
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