mc9s08gt32a Freescale Semiconductor, Inc, mc9s08gt32a Datasheet - Page 275

• Manufacturer Part Number: mc9s08gt32a
• Description: Hcs08 Microcontrollers 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

A.9.2
Synchronizer circuits determine the shortest input pulses that can be recognized or the fastest clock that
can be used as the optional external source to the timer counter. These synchronizers operate from the
current bus rate clock.
Freescale Semiconductor
Timer/PWM (TPM) Module Timing
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
TPMxCHn
Function
TPMxCHn
TPMxCHn
Figure A-15. Timer Input Capture Pulse
IRQ
Figure A-14. Timer External Clock
MC9S08GB60A Data Sheet, Rev. 1.02
Table A-11. TPM Input Timing
Figure A-13. IRQ Timing
t
clkh
Symbol
f
t
TPMext
TPMext
t
ICPW
t
t
clkh
clkl
t
t
ICPW
ICPW
t
ILIH
t
Text
t
clkl
Min
1.5
1.5
1.5
dc
4
Appendix A Electrical Characteristics
f
Max
Bus
—
—
—
—
/4
MHz
Unit
t
t
t
t
cyc
cyc
cyc
cyc
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