MC9S08QE16CLC Datasheet, PDF (324/350 Pages) Freescale Semiconductor, Inc – Low-power wireless applications, Gas, water and heater meters

Appendix A Electrical Characteristics and Timing Specifications
BKGD/MS
RESET
t_MSSU
t_MSH
Figure A-11. Active Background Debug Mode Latch Timing
t_IHIL
IRQ/KBIP7-KBIP4
IRQ/KBIPx
t_ILIH
Figure A-12. IRQ/KBIPx Timing
A.10.2 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-13. 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
MC9S08AC60 Series Data Sheet, Rev. 3
324
Freescale Semiconductor