Datasheet

Appendix A Electrical Characteristics
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
348 Freescale Semiconductor
Figure A-10. Reset Timing
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.
Figure A-12. Timer External Clock
Table A-14. TPM Input Timing
Num C Rating Symbol Min Max Unit
1—
External clock frequency (1/t
TCLK
)f
TCLK
dc
f
Bus
/4
MHz
2 — External clock period
t
TCLK
4—
t
cyc
3 — External clock high time
t
clkh
1.5 —
t
cyc
4 — External clock low time
t
clkl
1.5 —
t
cyc
5 — Input capture pulse width
t
ICPW
1.5 —
t
cyc
t
extrst
RESET PIN
t
IHIL
Pin Interrupts
t
ILIH
Pin Interrupts
t
TCLK
t
clkh
t
clkl
TCLK