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參數(shù)資料
| 型號(hào)： | M34282M2-XXXGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 1 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 4/71頁 |
| 文件大?。?/td> | 547K |
| 代理商： | M34282M2-XXXGP |
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Rev.1.33
Mar 18, 2004
page 10 of 67
4282 Group
Fig. 12 Auto-reload function
TIMERS
The 4282 Group has the programmable timer.
Programmable timer
The programmable timer has a reload register and enables
the frequency dividing ratio to be set. It is decremented from a
setting value n. When it underflows (count to n + 1), a timer 1
underflow flag is set to “1,” new data is loaded from the reload
register, and count continues (auto-reload function).
FF16
n
0016
n: Counter initial value
Count starts
Reload
1st underflow
2nd underflow
n+1 count
Time
A skip instruction is executed
Timer 1 underflow flag
The
contents
of
counter
“1”
The 4282 Group timer consists of the following circuit.
Timer 1 : 8-bit programmable timer
Timer 2 : 8-bit programmable timer
These timers can be controlled with the timer control registers
V1 and V2.
Each timer function is described below.
Table 3 Function related timer
Circuit
Timer 1
Timer 2
14-bit timer
Structure
8-bit programmable
binary down counter
8-bit programmable
binary down counter
14-bit fixed frequency
Count source
Carrier wave output (CARRY)
Bit 5 of watchdog timer
f(XIN)
f(XIN)/2
Instruction clock
Frequency
dividing ratio
1 to 256
16384
Use of output signal
Carrier wave output control
Carrier wave output
Watchdog timer
Timer 1 count source
Control
register
V1
V2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34283G2-XXXGP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| M34506M4-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO20 |
| M34507M4-XXXFP | 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO24 |
| M34524MC-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP64 |
| M34524MC-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34282T5-OPT | 制造商:Renesas Electronics Corporation 功能描述:DEV OPTION BOARD FOR 4282 GROUP/PC4400 - Boxed Product (Development Kits) |
| M34283 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34283G2GP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34283G2GP#U1 | 制造商:Renesas Electronics Corporation 功能描述:MICROCONTROLLER |
| M34283G2-XXXGP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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