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STV82X7 Folha de dados(PDF) 52 Page - STMicroelectronics

Nome de Peças STV82X7
Descrição Electrónicos  Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders
PDF  156 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV82X7 Folha de dados(HTML) 52 Page - STMicroelectronics

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I²C Interface
STV82x7
52/156
Figure 31: Initialization Procedure at Startup
(Duration of init phase < 1ms)
=0
(bit 0 in DSP_STATUS
register)
Device Input Configuration
Set-up (if needed)
INIT_MEM bit ?
Hardware Reset Pin LOW
Power ON
Hardware Reset Pin HIGH
Delay > 100 us
Clock PLL programmation (Note 1)
Load Patch File
see Figure 32
=0
(FFh register)
Check Patch version
=1
HOST_RUN bit = 1
Delay 2 ms
Initialization Procedure
(bit 0 in DSP_RUN register)
(HW_RESET bit = 1 is done by patch
file at the end of patch loading)
Note 2
NOTE 2: The customer can also set bit HW_RESET = 1 here.
(If input configuration has to be changed,
it has to be done here)
(Start DSP processing)
see Figure 33
NOTE 1: Only when the crystal frequency is not 27 MHz.
=1



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