參數(shù)資料
型號： W77IE58
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, PDIP40
封裝： DIP-40
文件頁數(shù)： 63/90頁
文件大?。?/td> 409K
代理商： W77IE58
Preliminary W77IE58
Publication Release Date: July 2000
- 63 -
Revision A1
C/T = T2CON.1
1/4
1/12
T2M = CKCON.5
Down Counting Reload Value
0FFh
T2CON
.7
Up Counting Reload Value
T2 = P1.0
T2CON.6
TR2 = T2CON.2
T2EX = P1.1
EXF2
Timer 2
Interrupt
TF2
TH2
TL2
RCAP2H
RCAP2L
1
0
0
1
0FFh
DCEN = 1
Clock Source
Mode input
div. by 4 osc/1
div. by 64 osc/16
div. by 1024 osc/256
Figure 16. 16-Bit Auto-reload Up/Down Counter
Baud Rate Generator Mode
The baud rate generator mode is enabled by setting either the RCLK or TCLK bits in T2CON register.
While in the baud rate generator mode, Timer/Counter 2 is a 16 bit counter with auto reload when the
count rolls over from FFFFh. However, rolling over does not set the TF2 bit. If EXEN2 bit is set, then a
negative transition of the T2EX pin will set EXF2 bit in the T2CON register and cause an interrupt
request. T2OE bit must be cleared in this mode.
C/T = T2CON.1
0
T2 = P1.0
T2CON.6
TR2 = T2CON.2
T2EX = P1.1
EXEN2 = T2CON.3
EXF2
Timer 2
overflow
Timer 2
Interrupt
TH2
TL2
RCAP2H
RCAP2L
1
Clock Source
Mode input
div. by 4 osc/2
div. by 64 osc/32
div. by 1024 osc/512
Figure 17. Baud Rate Generator Mode
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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