STV8287D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STV8287D

Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders

STMicroelectronics 

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STV82x7

11.2 Start-up and Configuration Change Procedure

Figure 27: Flow chart

Power ON

I²C Interface

Hardware Reset (by pin 43)

NOTE: This HW reset after Power ON is

mandatory to avoid bad device configuration

Clock PLLs progammation

(FS1 & FS2 registers)

(for Crystal value different than 27 MHz)

Load Patch File

(by I²C transfer)

HW_RESET bit = 1

(bit 2 in HOST_CMD register)

(DSP RUN)

INIT_MEM bit ?

(bit 0 in DSP_STATUS

register)

(DSP inititialization)

=0

=1

Device Configuration Set-up

(analog or digital)

HOST_RUN bit = 1

(bit 0 in DSP_RUN register)

(start DSP processing)

INIT_MEM bit = 0

(change configuration)

HOST_NO_INIT bit = 1

(bit 1 in DSP_RUN register)

(OPTIONAL)

(registers 85h to FFh are not reset)

HOST_RUN bit = 0

(stop DSP processing)

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