mc9s08mm128 Freescale Semiconductor, Inc, mc9s08mm128 Datasheet - Page 37

• Manufacturer Part Number: mc9s08mm128
• Description: S08mm Flexis
• Manufacturer: Freescale Semiconductor, Inc

2.11.2
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
#
1
2
3
4
5
TPM Timing
—
—
C
D
D
D
TPMxCLK
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
TPMxCHn
TPMxCHn
Figure 11. Timer Input Capture Pulse
Figure 10. Timer External Clock
Function
Table 20. TPM Input Timing
t
clkh
t
t
ICPW
ICPW
t
TPMext
Symbol
t
f
t
clkl
TPMext
TPMext
t
ICPW
t
t
clkh
clkl
Preliminary Electrical Characteristics
Min
1.5
1.5
1.5
dc
4
f
Max
Bus
—
—
—
—
/4
MHz
Unit
t
t
t
t
cyc
cyc
cyc
cyc
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