參數(shù)資料
型號: 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強(qiáng)的超級I / O控制器,快速紅外線
文件頁數(shù): 149/173頁
文件大?。?/td> 965K
代理商: 37C672
2-20
3802 GROUP USER’S MANUAL
APPLICATION
2.2 Timer
(5) Timer application example 4 : Measurement of pulse width of FG pulse generated by motor
Outline : The “H” level width of a pulse input to the P54/CNTR0 pin is counted by Timer X. An
underflow is detected by Timer X interrupt and an end of the input pulse “H” level is
detected by CNTR0 interrupt.
Specifications : The “H” level width of a FG pulse input to the P54/CNTR0 pin is counted by Timer
X. (Example : When the clock frequency is 4.19 MHz, the count source would be
3.8 s that is obtained by dividing the clock frequency by 16.
Measurement can be made up to 250 ms in the range of FFFF16
to 000016.)
Figure 2.2.20 shows a connection of the timer and a setting of the division ration, and Figure 2.2.21
shows a setting of related registers.
Fig. 2.2.20 Connection of the timer and setting of the division ratio [Measurement of pulse width]
Timer X interrupt request bit
1/16
0 or 1
1/256
Fixed
Prescaler X
Timer X
250 ms
0 : No interrupt request
1 : Interrupt request
f(XIN) = 4.19 MHz
相關(guān)PDF資料
PDF描述
37C67X ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C957FR ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS
37FMA1-ABW31N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 0.2A, 24VDC, PANEL MOUNT-THREADED
37FML1-BEW31N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 0.2A, 24VDC, PANEL MOUNT-THREADED
37FML2-ACW21N SPECIAL SWITCH-PIEZO SWITCH, SPST, MOMENTARY, 1A, 24VDC, PANEL MOUNT-THREADED
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
37C67X 制造商:SMSC 制造商全稱:SMSC 功能描述:ENHANCED SUPER I/O CONTROLLER WITH FAST IR
37C-6BH-5-5 制造商:Birtcher Products 功能描述:
37C72U-185 制造商:White-Rodgers 功能描述:
37C73U-170 制造商:White-Rodgers 功能描述:
37C73U-171 制造商:White-Rodgers 功能描述: