mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 861

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

If (CLKS[1:0] ≠ 0:0 and FTMEN = 0), then MODH:L registers are updated according to
the CPWMS bit, that is:
If (CLKS[1:0] ≠ 0:0 and FTMEN = 1), then MODH:L registers are updated by PWM
synchronization (see “MODH:L Registers Synchronization”).
37.4.10.3 CnVH:L Registers
If (CLKS[1:0] = 0:0), then CnVH:L registers are updated when their second byte is
written (independent of FTMEN bit).
If (CLKS[1:0] ≠ 0:0 and FTMEN = 0), then CnVH:L registers are updated according to
the selected mode, that is:
If (CLKS[1:0] ≠ 0:0 and FTMEN = 1), then CnVH:L registers are updated according to
the selected mode, that is:
Freescale Semiconductor, Inc.
• If the selected mode is not CPWM mode, then MODH:L registers are updated after
• If the selected mode is CPWM mode, then MODH:L registers are updated after both
• If the selected mode is output compare mode, then CnVH:L registers are updated
• If the selected mode is EPWM mode, the CnVH:L registers are updated after both
• If the selected mode is CPWM mode, then CnVH:L registers are updated after both
both bytes have been written and the FTM counter changes from (MODH:L) to
(CNTINH:L). If the FTM counter is a free-running counter, then this update is made
when the FTM counter changes from 0xFFFF to 0x0000.
bytes have been written and the FTM counter changes from MODH:L to (MODH:L
– 0x0001).
after their second byte is written and on the next change of the FTM counter (end of
the prescaler counting).
bytes have been written and the FTM counter changes from MODH:L to CNTINH:L.
If the FTM counter is a free running counter, then this update is made when the FTM
counter changes from 0xFFFF to 0x0000.
bytes have been written and the FTM counter changes from MODH:L to (MODH:L
– 0x0001).
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Preliminary
Chapter 37 FlexTimer (FTM)
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