Datasheet

MC9S08JS16 Series MCU Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor20
Figure 14. Reset Timing
Figure 15. IRQ/KBIPx Timing
3.9.2 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.
Figure 16. Timer External Clock
Table 10. TPM Input Timing
Num C Function Symbol Min Max Unit
1 D External clock frequency f
TPMext
dc f
Bus
/4 MHz
2 D External clock period t
TPMext
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
TPMext
t
clkh
t
clkl
TPMxCLK