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參數(shù)資料
| 型號： | 6P8B |
| 廠商： | NEC Corp. |
| 英文描述： | MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION |
| 中文描述： | 馬鞍山集成電路4位單片機的紅外遙控傳輸 |
| 文件頁數(shù)： | 30/95頁 |
| 文件大?。?/td> | 692K |
| 代理商： | 6P8B |
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30
μ
PD6P8, 6P8A, 6P8B
Data Sheet U17848EJ3V0DS
5.3.2 Carrier output control
Remote controller carrier can be output from the REM pin by clearing (0) bit 9 (CARY) of the modulo register
for setting the high-level period (MOD1).
When performing carrier output, be sure to set the timer operation after setting the MOD0 and MOD1 values.
Note that a malfunction may occur if the values of MOD0 and MOD1 are changed while carrier is being output from
the REM pin.
Executing the timer manipulation instruction starts the carrier output from the low level.
If the timer’s down counter reaches 0 during carrier output, carrier output is stopped and the REM pin becomes
low level. If the down counter reaches 0 while the carrier output is high level, carrier output will stop after first
becoming low level following the set period of high level.
Figure 5-4. Timer Output (When Carrier Is Output)
Note
low level.
Timer output time: (Set value + 1)
×
64/f
X
– 4/f
X
LED
REM
Note
t
H
t
L
Timer manipulation instruction
4/f
X
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