mc9s08ll64 Freescale Semiconductor, Inc, mc9s08ll64 Datasheet - Page 29

• Manufacturer Part Number: mc9s08ll64
• Description: 8-bit Hcs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

3.10.2
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.
Freescale Semiconductor
No.
1
2
3
4
5
TPM Module Timing
C
D
D
D
D
D
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
TCLK
TPMCHn
TPMCHn
IRQ/KBIPx
IRQ/KBIPx
Function
MC9S08LL64 Series MCU Data Sheet, Rev. 4
Figure 20. Timer Input Capture Pulse
Figure 19. Timer External Clock
Figure 18. IRQ/KBIPx Timing
Table 14. TPM Input Timing
t
clkh
t
t
ICPW
ICPW
t
t
IHIL
ILIH
Symbol
t
TCLK
t
f
t
ICPW
TCLK
TCLK
t
t
clkh
clkl
t
clkl
Min
1.5
1.5
1.5
0
4
f
Max
Bus
—
—
—
—
/4
AC Characteristics
Unit
t
t
t
t
Hz
cyc
cyc
cyc
cyc
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