參數(shù)資料
型號: S3C1850XX-SM
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO24
封裝: 0.375 INCH, SOP-24
文件頁數(shù): 6/89頁
文件大小: 323K
代理商: S3C1850XX-SM
S3C1850
2-13
TRANSMISSION CARRIER FREQUENCY
One of four carrier frequencies can be selected and transmitted through the P2.0/REM pin by programming the
internal P2.9, P2.10 and P2.0 pins (See Table 2-4). Figure 2-14 shows a simplified diagram of the various
transmission circuits.
Table 2-4. Carrier Frequency Selection Table
P2.10
P2.9
Carrier Frequency of P2.0/REM Pin
0
fxx/12, 1/3 duty
0
1
fxx/8, 1/2 duty
1
0
fxx/12, 1/4 duty
1
No carrier
4 x 1
MUX
Internal P2.9
fXX/8, 1/2 Duty
fXX/12, 1/3 Duty
fXX/12, 1/4 Duty
VDD (No Carry)
Internal P2.10
Internal P2.0
P2.0/REM
I.R.LED
Drive
Transistor
*P2.0
System Clock
Frequency
Internal P2.0
*P2.0
(fXX/12, 1/3 duty)
*P2.0
(fXX/8, 1/2 duty)
*P2.0
(No carry)
*P2.0
(fXX/12, 1/4 duty)
Figure 2-14. Diagram of Transmission Circuits
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