參數(shù)資料
型號(hào): 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): 151/173頁
文件大小: 965K
代理商: 37C672
2-22
3802 GROUP USER’S MANUAL
APPLICATION
2.2 Timer
Figure 2.2.22 shows a control procedure.
(Address : 2316)
(Address : 2416)
(Address : 2516)
(Address : 3E16), bit4
(Address : 3C16), bit4
(Address : 3F16), bit0
(Address : 3D16), bit0
(Address : 2316), bit3
All interrupts : Disabled
q
XXXX10112
256–1
1
0
1
0
~
RESET
Initialization
CNTR0 interrupt processing routine
CLT (Note 1)
CLD (Note 2)
Push register to stack
RTI
Pop registers
Timer X interrupt processing routine
Processing for error
RTI
Error occurs
q
A count value is read out and stored to RAM.
Set the division ratio so that the Timer X
interrupt occurs every 250 ms.
q
SEI
TM
PREX
TX
ICON1
IREQ1
ICON2
IREQ2
TM
CLI
....
X : This bit is not used in this application.
Set it to “0” or “1.” It’s value can be disregarded.
PREX
(A)
Result of pulse width measurement
low–order 8-bit
(A)
Result of pulse width measurement
high–order 8-bit
PREX (Address : 2416)
TX
(Address : 2516)
Inversion of (A)
TX
256– 1
Inversion of (A)
256 – 1
Push the register used in the interrupt
processing routine into the stack.
Pop registers which is pushed to stack.
Timer X : Pulse width measurement mode
(Count “H” level width of pulse input from CNTR0 pin.)
Set the division ratio so that the Timer X interrupt occurs
every 250 ms.
q
Note 1:When using the Index X mode flag (T).
Note 2: When using the Decimal mode flag (D).
CNTR0 interrupt : Enabled
q
Timer X interrupt : Enabled
q
Timer X count : Operating
Interrupts : Enabled
q
Fig. 2.2.22 Control procedure [Measurement of pulse width]
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: