參數(shù)資料
型號: TWR-MCF51MM-KIT
廠商: Freescale Semiconductor
文件頁數(shù): 39/57頁
文件大小: 0K
描述: KIT TOWER DEV FOR MCF51AG
設(shè)計(jì)資源: TWR-MCF51MM Schematic
標(biāo)準(zhǔn)包裝: 1
系列: ColdFire®, Flexis™
類型: MCU
適用于相關(guān)產(chǎn)品: Freescale 電源塔系統(tǒng),MCF51MM
所含物品: 4 個(gè)板,線纜,文檔,DVD,MED-EKG 傳感器
Electrical Characteristics
Freescale Semiconductor
44
3.12.2
TPM Timing
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.
Figure 13. Timer External Clock
Figure 14. Timer Input Capture Pulse
Table 22. TPM Input Timing
#
C
Function
Symbol
Min
Max
Unit
1
External clock frequency
fTPMext
dc
fBus/4
MHz
2
External clock period
tTPMext
4—
tcyc
3
D
External clock high time
tclkh
1.5
tcyc
4
D
External clock low time
tclkl
1.5
tcyc
5
D
Input capture pulse width
tICPW
1.5
tcyc
tTPMext
tclkh
tclkl
TPMxCLK
tICPW
TPMxCHn
tICPW
TPMxCHn
MCF51MM256/128, Rev. 5
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