參數(shù)資料
型號: L64780
廠商: LSI Corporation
英文描述: DVB-T COFDM Demodulator(對地數(shù)字視頻廣播 正交編碼頻率分割多路處理解調(diào)器)
中文描述: 的DVB - T COFDM解調(diào)器(對地數(shù)字視頻廣播正交編碼頻率分割多路處理解調(diào)器)
文件頁數(shù): 118/126頁
文件大?。?/td> 953K
代理商: L64780
A-2
Programming the L64780 Using The Serial Bus Interface
A.1 Serial Bus Protocol Overview
The multimaster Serial bus interface has two one-bit lines: A0 (Serial
Clock), and D0 (Serial Data). These are connected to the bus (see
Figure A.1
). External pullup resistors hold the bus at a logic 1 when it is
not in operation. See the Serial Bus protocol documentation for a
detailed explanation and electrical characteristics. D[7:1] are used to set
the serial bus slave address. When using the serial bus, D[7:1] must be
hardwired to set the appropriate device slave address.
Select the serial bus mode on the L64780 by asserting P_S.
Features of the serial bus protocol include:
Two one-bit lines: A0 and D0.
D0: Serial Data.
A0: serial clock (maximum frequency = 400 kHz).
A0 and D0 have external pull-up resistors (the bus is normally
HIGH).
The Master always generates the clock, A0, and cycle start/stop
conditions.
Figure A.1
provides an overview illustration of the serial bus.
Figure A.1
Serial Bus Overview
D0
A0
Serial Bus Compliant Device
5.0V
5.0V
Serial Bus Compliant Device
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