mcf51jm128 Freescale Semiconductor, Inc, mcf51jm128 Datasheet - Page 33

• Manufacturer Part Number: mcf51jm128
• Description: Mcf51jm128 Coldfire Microcontroller Flexis 32-bit V1 Coldfire? Usb Microcontroller
• 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.
2.11.3
Freescale Semiconductor
1
Num
Typical values are based on characterization data at V
1
2
NUM
C
D
D
1
2
3
4
5
Timer/PWM (TPM) Module Timing
MSCAN
MSCAN Wake-up dominant pulse filtered
MSCAN Wake-up dominant pulse pass
—
—
C
D
D
D
External clock frequency
External clock period
External clock high time
External clock low time
Input capture pulse width
TPMxCLK
Table 19. MSCAN Wake-up Pulse Characteristics
Parameter
TPMxCHn
TPMxCHn
MCF51JM128 ColdFire Microcontroller, Rev. 0
Figure 17. Timer Input Capture Pulse
Figure 16. Timer External Clock
Function
Table 18. TPM Input Timing
DD
t
clkh
= 5.0V, 25°C unless otherwise stated.
t
t
ICPW
ICPW
t
TPMext
Symbol
t
t
WUP
WUP
Symbol
f
t
TPMext
TPMext
t
t
ICPW
t
t
clkl
clkh
clkl
Min
5
Preliminary Electrical Characteristics
Min
1.5
1.5
1.5
dc
4
Typ
1
f
Max
Bus
—
—
—
—
/4
Max
2
5
MHz
Unit
t
t
t
t
cyc
cyc
cyc
cyc
Unit
μs
μs
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