Datasheet

Electrical Characteristics
MC9S08GT16A/GT8A Data Sheet, Rev. 1
278 Freescale Semiconductor
Figure A-12. Reset Timing
Figure A-13. Active Background Debug Mode Latch Timing
Figure A-14. IRQ 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 Symbol Min Max Unit
External clock frequency
f
TPMext
dc
f
Bus
/4
MHz
External clock period
t
TPMext
4—
t
cyc
External clock high time
t
clkh
1.5 —
t
cyc
External clock low time
t
clkl
1.5 —
t
cyc
Input capture pulse width
t
ICPW
1.5 —
t
cyc
t
extrst
RESET PIN
BKGD/MS
RESET
t
MSSU
t
MSH
t
ILIH
IRQ