參數(shù)資料
型號(hào): M3455AGC-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP52
封裝: 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件頁(yè)數(shù): 74/148頁(yè)
文件大?。?/td> 1807K
代理商: M3455AGC-XXXFP
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Rev.1.02
Nov 26, 2008
Page 31 of 146
REJ03B0224-0102
455A Group
The 455A Group timer consists of the following circuits.
Prescaler : 8-bit programmable timer
Timer 1 : 8-bit programmable timer
Timer 2 : 8-bit programmable timer
Timer 3 : 16-bit fixed frequency timer
Timer LC : 4-bit programmable timer
Watchdog timer: 16-bit fixed frequency timer
(Timers 1, 2 and 3 have the interrupt function, respectively)
Prescaler, timer 1, timer 2, timer 3 and timer LC can be
controlled with the timer control registers PA and W1 to W5. The
watchdog timer is a free counter which is not controlled with the
control register.
Each function is described below.
Table 16 Function related timers
Circuit
Structure
Count source
Frequency
dividing ratio
Use of output signal
Control
register
Prescaler
8-bit programmable
binary down counter
Instruction clock (INSTCK)
1 to 256
Timer 1 count source
Timer 2 count source
Timer 3 count source
PA
Timer 1
8-bit programmable
binary down counter
(link to INT input)
(carrier wave output auto-
control function)
PWM signal (PWMOUT)
Prescaler output (ORCLK)
Timer 3 underflow (T3UDF)
CNTR input
1 to 256
CNTR output control
Timer 1 interrupt
W1
W4
Timer 2
8-bit programmable
binary down counter
(with carrier wave
generation function)
XIN input
Prescaler output divided by 2
(ORCLK/2)
1 to 256
Timer 1 count source
CNTR output
Timer 2 interrupt
W2
W4
Timer 3
16-bit fixed dividing
frequency
XCIN input
Prescaler output (ORCLK)
High-speed on-chip oscillator
(f(HSOCO))
Low-speed on-chip oscillator
(f(LSOCO))
512
1024
2048
4096
8192
16384
32768
65536
Timer 1 count source
Timer LC count source
Timer 3 interrupt
W3
W5
Timer LC
4-bit programmable binary
down counter
Bit 4 of timer 3 (T34)
System clock (STCK)
1 to 16
LCD clock
W4
Watchdog
timer
16-bit fixed dividing
frequency
Instruction clock (INSTCK)
65536
System reset (counting twice)
Decision of flag WDF1
-
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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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M3455-SL002 制造商:Alpha Wire 功能描述:
M3455-SL005 制造商:Alpha Wire 功能描述:
M3455-SL199 制造商:Alpha Wire 功能描述:
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