MC9S08GB60A Datasheet, PDF (277/302 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

t_ILIH
IRQ
Appendix A Electrical Characteristics
Figure A-13. IRQ Timing
A.9.2 Timer/PWM (TPM) Module Timing
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.
Table A-11. TPM Input Timing
Function
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
Symbol
Min
f_TPMext
dc
t_TPMext
4
t_clkh
1.5
t_clkl
1.5
t_ICPW
1.5
Max
f_Bus/4
—
—
—
—
Unit
MHz
t_cyc
t_cyc
t_cyc
t_cyc
TPMxCHn
t_clkh
t_Text
t_clkl
Figure A-14. Timer External Clock
TPMxCHn
t_ICPW
TPMxCHn
t_ICPW
Figure A-15. Timer Input Capture Pulse
MC9S08GB60A Data Sheet, Rev. 2
Freescale Semiconductor
277