參數(shù)資料
型號(hào): MT312
廠(chǎng)商: ZARLINK SEMICONDUCTOR INC
元件分類(lèi): 消費(fèi)家電
英文描述: Satellite Channel Decoder
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝: MQFP-80
文件頁(yè)數(shù): 29/90頁(yè)
文件大?。?/td> 318K
代理商: MT312
DiSEqC Control
MT312
29
5 DiSEqC Control
5.1 Screen Printouts of DiSEqC Waveforms
The timing periods of the 16ms before the data byte and 16ms afterwards to the interrupt being asserted are
clearly shown. The restoration of the 22kHz after the interrupt is controlled by software.
A 'zero' comprises 22kHz on for 1ms then off for 0.5ms. A 'one' comprises 22kHz on for 0.5ms then off for 1ms.
The ninth bit is an odd parity bit.
Figure 20 - A DiSEqC data byte interrupting a continuous 22kHz tone
Figure 21 - One DiSEqC data byte - 0x11 (hex) plus parity bit
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