Datasheet

MC9S08LG32 Series Data Sheet, Rev. 9
Electrical Characteristics
Freescale Semiconductor30
Figure 20. IRQ/KBIPx Timing
2.11.2 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 21. Timer External Clock
Figure 22. Timer Input Capture Pulse
Table 15. 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
IHIL
IRQ/KBIPx
t
ILIH
IRQ/KBIPx
t
TCLK
t
clkh
t
clkl
TPMCLK
t
ICPW
TPMCHn
t
ICPW
TPMCHn