參數(shù)資料
型號(hào)： S3C1860XX-DK
元件分類(lèi)： 微控制器/微處理器
英文描述： 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP20
封裝： 0.300 INCH, DIP-20
文件頁(yè)數(shù)： 88/95頁(yè)
文件大小： 339K
代理商： S3C1860XX-DK
REMOTE CONTROL TX. APPLICATION NOTE
S3C1840/C1850/C1860/P1860
7-32
S3C1840/C1850 SIGNAL TRANSMISSION
Description
This program is for signal transmissions in SAMSUNG standard format. If one key is pressed, two frames are
transmitted consecutively. The repeat pulse is transmitted until key-off. The frame interval is 60 ms.
Each frame consists of leader code, custom code, and data code:
— Leader code (high level for 4.5 ms and low level for 4.5 ms)
— 12-bit custom code
— 8-bit data code
Transmission Waveform
60 ms
Frame Waveform
Leader code
4.5 ms 4.5 ms
60 ms
custom code (c0-c11)
data code (d0-d7)
Data Pulse
0.56 ms
1.125 ms
data '0'
2.25 ms
0.56 ms
data '1'
Figure 7-15. Transmission Waveforms
RAM Assignment
This part is the same as for keyscan and code generation.
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