mc9s08se4 Freescale Semiconductor, Inc, mc9s08se4 Datasheet - Page 25

• Manufacturer Part Number: mc9s08se4
• 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
Num
1
2
3
4
5
TPM/MTIM 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/Pin Interrupts
IRQ/Pin Interrupts
MC9S08SE8 Series MCU Data Sheet, Rev. 2
Rating
Figure 19. Timer Input Capture Pulse
Figure 17. IRQ/Pin Interrupt Timing
Figure 18. Timer External Clock
Table 14. TPM Input Timing
t
clkh
t
t
ICPW
ICPW
t
TCLK
Symbol
f
t
TPMext
TPMext
t
ICPW
t
t
clkh
t
t
clkl
IHIL
ILIH
t
clkl
Min
DC
1.5
1.5
1.5
4
Electrical Characteristics
f
Max
Bus
—
—
—
—
/4
MHz
Unit
t
t
t
t
cyc
cyc
cyc
cyc
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