MC9S08EL32 Datasheet, PDF (346/356 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

Appendix A Electrical Characteristics
RESET PIN
t_extrst
Figure A-10. Reset Timing
t_IHIL
Pin Interrupts
Pin Interrupts
t_ILIH
Figure A-11. Pin Interrupt Timing
A.12.2 TPM/MTIM 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-14. TPM Input Timing
Num C
Rating
Symbol
Min
1
— External clock frequency (1/t_TCLK)
f_TCLK
dc
2
— External clock period
t_TCLK
4
3
— External clock high time
t_clkh
1.5
4
— External clock low time
t_clkl
1.5
5
— Input capture pulse width
t_ICPW
1.5
Max
f_Bus/4
—
—
—
—
Unit
MHz
t_cyc
t_cyc
t_cyc
t_cyc
t_clkh
t_TCLK
TCLK
t_clkl
Figure A-12. Timer External Clock
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
348
Freescale Semiconductor