S9S08AW16A FREESCALE [Freescale Semiconductor, Inc], S9S08AW16A Datasheet - Page 187

• Manufacturer Part Number: S9S08AW16A
• Description: HCS08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Freescale Semiconductor
TPMxCNTH:TPMxCNTL
TPMxMODH:TPMxMODL = 0x0007
TPMxCnVH:TPMxCnVL = 0x0005
EPWM mode
6. Write to TPMxMODH:L registers in BDM mode
7. Update of EPWM signal when CLKSB:CLKSA = 00
(in TPMv2 and TPMv3)
TPMv2 TPMxCHn
CLKSB:CLKSA BITS
TPMv3 TPMxCHn
ELSnB:ELSnA BITS
RESET (active low)
MSnB:MSnA BITS
— TPMxCnVH:L is changed from a non-zero value to 0x0000 [SE110-TPM case 4]
Registers
In the TPM v3 a write to TPMxSC register in BDM mode clears the write coherency mechanism
of TPMxMODH:L registers. Instead, in the TPM v2 this coherency mechanism is not cleared when
there is a write to TPMxSC register.
In the TPM v3 if CLKSB:CLKSA = 00, then the EPWM signal in the channel output is not update
(it is frozen while CLKSB:CLKSA = 00). Instead, in the TPM v2 the EPWM signal is updated at
the next rising edge of bus clock after a write to TPMxCnSC register.
The
v3 after the reset (CLKSB:CLKSA = 00) and if there is a write to TPMxCnSC register.
BUS CLOCK
Figure 10-17. Generation of high-true EPWM signal by TPM v2 and v3 after the reset
In this case, the TPM v3 finishes the current PWM period using the old duty cycle setting.
Instead, the TPM v2 finishes the current PWM period using the new duty cycle setting.
Figure 10-17
CHnF BIT
(TPMxMODH:TPMxMODL))
and
00
00
Figure 10-18
MC9S08AC16 Series Data Sheet, Rev. 8
show when the EPWM signals generated by TPM v2 and TPM
00
0
(Section 10.5.3, “TPM Counter Modulo
10
10
1 2 3 4 5 6 7
Timer/PWM Module (S08TPMV3)
01
0 1
2
...
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