參數(shù)資料
型號: W77LE58F-25
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8 BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數(shù): 55/81頁
文件大小: 657K
代理商: W77LE58F-25
Preliminary W77LE58
Publication Release Date: August 1999
- 55 - Revision A1
1/4
1/12
T0M = CKCON.3
1
Interrupt
C/T = TMOD.2
0
T0 = P3.4
TH0
TL0
TR0 = TCON.4
GATE = TMOD.3
TR1 = TCON.6
INT0 = P3.2
7
0
TF1
7
0
Interrupt
TF0
0
1
Clock Source
Mode
div. by 4 osc/1
div. by 64 osc/16
div. by 1024 osc/256
input
Figure 13. Timer/Counter 0 Mode 3
Capture Mode
The capture mode is enabled by setting the CP RL
TCLK bits must be cleared. In the capture mode, Timer/Counter 2 serves as a 16 bit up counter.
When the counter rolls over from FFFFh to 0000h, the TF2 bit is set, which will generate an interrupt
request. If the EXEN2 bit is set, then a negative transition of T2EX pin will cause the value in the TL2
and TH2 register to be captured by the RCAP2L and RCAP2H registers. This action also causes the
EXF2 bit in T2CON to be set, which will also generate an interrupt. Setting the T2CR bit (T2MOD.3),
the W77LE58 allows hardware to reset timer 2 automatically after the value of TL2 and TH2 have
been captured.
/
2 bit in the T2CON register to a 1, RCLK and
1/4
Clock Source
Mode input
div. by 4 osc/1
div. by 64 osc/16
div. by 1024 osc/256
1/12
T2M = CKCON.5
1
C/T2 = T2CON.1
0
T2CON.7
T2 = P1.0
T2CON.6
TR2 = T2CON.2
T2EX = P1.1
EXEN2 = T2CON.3
EXF2
Timer 2
Interrupt
TF2
TH2
TL2
RCAP2H
RCAP2L
0
1
Figure 14. 16-Bit Capture Mode
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