MC9S08GW64 FREESCALE [Freescale Semiconductor, Inc], MC9S08GW64 Datasheet - Page 25

• Manufacturer Part Number: MC9S08GW64
• Description: Covers: MC9S08GW64 and MC9S08GW32
• Manufacturer: FREESCALE [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
Timer (TPM/FTM) 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
PRELIMINARY-SUBJECT TO CHANGE WITHOUT NOTICE
TCLK
FTMCHn
FTMCHn
IRQ/KBIPx
IRQ/KBIPx
Function
MC9S08GW64 Series MCU Data Sheet, Rev. 1
Figure 18. Timer External Clock
Figure 17. 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
Electrical Characteristics
—
—
—
—
/4
Unit
t
t
t
t
Hz
cyc
cyc
cyc
cyc
25