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STA015B датащи(PDF) 41 Page - STMicroelectronics

номер детали STA015B
подробное описание детали  MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY
PDF  56 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA015B датащи(HTML) 41 Page - STMicroelectronics

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STA015
GPSO_ENABLE
Address: 0xB9 (185)
Type: R/W
Software Reset: 0x00
Hardware Reset: 0x00
This register enable/disable the GPSO interface.
Setting the GEN bit will enable the serial interface for ADPCM data retrieving. Reset GEN bit to disable
GPSO interface.
GPSO_CONF
Address: 0xBA (186)
Type: R/W
Software Reset: 0x00
Hardware Reset: 0x00
GSP: GPSO clock polarity sing this bit the GPSO_SCKR polarity can be controlled. Clearing GSP bit data
on GPSO_DATA line will be provided on the rising edge of GPSO_SCKR (sampling on falling
edge). Setting GSP bit data are provided on falling edge of GPSO_SCKR (sampling on rising edge)
GRP: GPSO Request Polarity This bit is used to determine the polarity of GPSO_REQ signal. If GRP bit
is cleared data are valid on GPSO_REQ signal high. If this bit is set data are valid on GPSO_REQ
signal low
ADC_ENABLE
Address: 0xBB (187)
Type: R/W
Software Reset: 0x00
Hardware Reset: 0x00
This register controls if the ADPCM data to be encoded comes from A/D interface or from MP3 bitstream
input interface.
If ADCEN bit is set data to be encoded comes from ADC interface, otherwise data comes from MP3
stream interface
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
X
XXXX
XX
GEN
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
X
XXXX
X
GRP
GSP
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
X
XXXX
XX
ADCEN



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