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參數(shù)資料
| 型號： | UPD17217 |
| 廠商： | NEC Corp. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機的小型通用紅外遙控器 |
| 文件頁數(shù)： | 36/84頁 |
| 文件大?。?/td> | 350K |
| 代理商： | UPD17217 |
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μ
PD17215, 17216, 17217, 17218
36
6.
BASIC INTERVAL TIMER/WATCHDOG TIMER
The basic interval timer has a function to generate the interval timer interrupt signal and watchdog timer reset signal.
6.1
Source Clock for Basic Interval Timer
The system clock (f
x
) is divided, to generate the source clock for the basic interval timer. The input clock frequency for
the basic interval timer is f
x
/2
7
. When the CPU is set in the STOP mode, the basic interval timer also stops.
6.2
Controlling Basic Interval Timer
The basic interval timer is controlled by the bits on the register file. That is, the basic interval timer is reset by BTMRES.
The frequency for the interrupt signal, output by the basic interval timer, is selected by BTMMD, and the watchdog timer is
reset by WDTRES.
Fig. 6-1 Basic Interval Timer Configuration
System
clock f
X
1/2
divider
7
1/2
divider
11
1/2
divider
1/2
divider
1/2
divider
BTMRES
WDTRES
BTMCK
IRQBTM
WDOUT
S
f /2
18
X
f /2
20
X
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17217CT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17217GT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17218 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17218CT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17218GT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
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