MC9S08SH16CTL Freescale, MC9S08SH16CTL Datasheet - Page 262

• Manufacturer Part Number: MC9S08SH16CTL
• Manufacturer: Freescale

Specifications of MC9S08SH16CTL

• Cpu Family: HCS08
• Device Core Size: 8b
• Frequency (max): 40MHz
• Interface Type: SCI/SPI
• Total Internal Ram Size: 1KB
• # I/os (max): 23
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Package Type: TSSOP
• Program Memory Type: Flash
• Program Memory Size: 16KB
• Lead Free Status / RoHS Status: Compliant

Chapter 16 Timer/PWM Module (S08TPMV3)
16.6.2.1.2
When CPWMS=1, TOF gets set when the timer counter changes direction from up-counting to
down-counting at the end of the terminal count (the value in the modulo register). In this case the TOF
corresponds to the end of a PWM period.
16.6.2.2
The meaning of channel interrupts depends on the channel’s current mode (input-capture, output-compare,
edge-aligned PWM, or center-aligned PWM).
16.6.2.2.1
When a channel is configured as an input capture channel, the ELSnB:ELSnA control bits select no edge
(off), rising edges, falling edges or any edge as the edge which triggers an input capture event. When the
selected edge is detected, the interrupt flag is set. The flag is cleared by the two-step sequence described
in
16.6.2.2.2
When a channel is configured as an output compare channel, the interrupt flag is set each time the main
timer counter matches the 16-bit value in the channel value register. The flag is cleared by the two-step
sequence described
16.6.2.2.3
For channels configured for PWM operation there are two possibilities. When the channel is configured
for edge-aligned PWM, the channel flag gets set when the timer counter matches the channel value register
which marks the end of the active duty cycle period. When the channel is configured for center-aligned
PWM, the timer count matches the channel value register twice during each PWM cycle. In this CPWM
case, the channel flag is set at the start and at the end of the active duty cycle period which are the times
when the timer counter matches the channel value register. The flag is cleared by the two-step sequence
described
16.7
262
Section 16.6.2, “Description of Interrupt Operation.”
1. Write to TPMxCnTH:L registers
2. Read of TPMxCNTH:L registers
(TPMxCNTH:TPMxCNTL)) [SE110-TPM case 7]
Any write to TPMxCNTH or TPMxCNTL registers in TPM v3 clears the TPM counter
(TPMxCNTH:L) and the prescaler counter. Instead, in the TPM v2 only the TPM counter is cleared
in this case.
(TPMxCNTH:TPMxCNTL))
— In TPM v3, any read of TPMxCNTH:L registers during BDM mode returns the value of the
The Differences from TPM v2 to TPM v3
Section 16.6.2, “Description of Interrupt Operation.”
TPM counter that is frozen. In TPM v2, if only one byte of the TPMxCNTH:L registers was
read before the BDM mode became active, then any read of TPMxCNTH:L registers during
Channel Event Interrupt Description
Center-Aligned PWM Case
Input Capture Events
Output Compare Events
PWM End-of-Duty-Cycle Events
Section 16.6.2, “Description of Interrupt Operation.”
MC9S08SH32 Series Data Sheet, Rev. 2
(Section 16.3.2, “TPM-Counter Registers
(Section 16.3.2, “TPM-Counter Registers
PRELIMINARY
Freescale Semiconductor