MC9S08SH4CTG Freescale, MC9S08SH4CTG Datasheet - Page 264

• Manufacturer Part Number: MC9S08SH4CTG
• Manufacturer: Freescale

Specifications of MC9S08SH4CTG

• Cpu Family: HCS08
• Device Core Size: 8b
• Frequency (max): 40MHz
• Interface Type: I2C/SCI/SPI
• Total Internal Ram Size: 256Byte
• # I/os (max): 13
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Package Type: TSSOP
• Program Memory Type: Flash
• Program Memory Size: 4KB
• Lead Free Status / RoHS Status: Compliant

Chapter 16 Timer/PWM Module (S08TPMV3)
264
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
after the reset (CLKSB:CLKSA = 00) and if there is a write to TPMxCnSC register.
BUS CLOCK
In this case, the TPM v3 waits for the start of a new PWM period to begin using the new duty
cycle setting. Instead, the TPM v2 changes the channel output at the middle of the current
PWM period (when the count reaches 0x0000).
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 0-1
Figure 0-1. Generation of high-true EPWM signal by TPM v2 and v3 after the reset
CHnF BIT
(TPMxMODH:TPMxMODL))
and
Figure 0-2
00
00
MC9S08SH8 MCU Series Data Sheet, Rev. 3
show when the EPWM signals generated by TPM v2 and TPM v3
00
0
(Section 16.3.3, “TPM Counter Modulo
10
10
1 2 3 4 5 6 7
Freescale Semiconductor
01
0 1
2
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