Datasheet

AC Characteristics
MC9S08LL64 Series MCU Data Sheet, Rev. 7
Freescale Semiconductor 29
Figure 17. Reset Timing
Figure 18. IRQ/KBIPx Timing
3.10.2 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.
Figure 19. Timer External Clock
Table 14. TPM Input Timing
No. C Function Symbol Min Max Unit
1 D External clock frequency f
TCLK
0f
Bus
/4 Hz
2 D External clock period t
TCLK
4—t
cyc
3 D External clock high time t
clkh
1.5 — t
cyc
4 D External clock low time t
clkl
1.5 — t
cyc
5 D Input capture pulse width t
ICPW
1.5 — t
cyc
t
extrst
RESET PIN
t
IHIL
IRQ/KBIPx
t
ILIH
IRQ/KBIPx
t
TCLK
t
clkh
t
clkl
TCLK