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STV82X8 Folha de dados(PDF) 45 Page - STMicroelectronics

Nome de Peças STV82X8
Descrição Electrónicos  Digital Audio Decoder / Processor for BTSC Television/Video Recorders
PDF  157 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV82X8 Folha de dados(HTML) 45 Page - STMicroelectronics

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STV82x8
I²C Interface
11.2
Start-up and Configuration Change Procedure
Figure 30: Flowchart
Load Patch File
HW_RESET bit = 1
(DSP RUN)
(DSP inititialization)
Device Configuration Set-up
(Analog or Digital)
HOST_RUN bit = 1
(Start DSP processing)
(Change configuration)
INIT_MEM bit = 0
(Registers 85h to FFh are not reset)
Clock PLLs progammation
(for oscillator values other than 27 MHz)
=1
=0
(Registers FS1 and FS2)
(By I²C transfer)
(bit 2 in HOST_CMD register)
(bit 0 in DSP_STATUS
register)
HOST_RUN bit = 0
(bit 0 in DSP_RUN register)
HOST_NO_INIT bit = 1
(OPTIONAL)
(bit 1 in DSP_RUN register)
(Stop DSP processing)
INIT_MEM bit ?
Hardware Reset (by pin 43)
Power ON
NOTE: This HW reset after Power ON is
mandatory to prevent incorrect device
configuration.



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