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STA2416 数据表(PDF) 29 Page - STMicroelectronics

部件名 STA2416
功能描述  Bluetooth??Baseband with integrated flash
PDF  38 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA2416 数据表(HTML) 29 Page - STMicroelectronics

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STA2416
Interfaces
29/38
7.2.1
Feature description: Agilent mode
One application is a combination of a Bluetooth™ device with an Agilent optical mouse
sensor to build a Bluetooth™ Mouse. The Agilent chip has an SPI interface with one
bi-directional data port.
When SPI_IO from ADNS_2030 is driving, SPI_RXD should be active, while SPI_TXD is set
as a tri-state high impedance input.
For a read operation, the Bluetooth™ SPI_TXD is put in high impedance state after the
reception of the address.
Note that this feature works independently of the SPI mode, supporting other combinations.
In this case, the devices are connected as described in Figure 9.
Figure 9.
Agilent mode
7.2.2
Feature description: 32-bit SPI
One application is a Bluetooth™ stereo headset. In this application, the audio samples are
received from the emitter through the air using the Bluetooth™ baseband with ACL packets.
The samples are decoded by the embedded ARM CPU (the samples were encoded, for
compression, in SBC or MP3 format) and then sent to a stereo codec though the SPI
interface. The application is described in Figure 10.
Figure 10.
32-bit SPI
To support this application, the data size is 32 bits. The 32-bit support is implemented for
both transmit and receive.
STA2416
Agilent ADNS-2030
SPI_CLK
SPI_FRM
SPI_TXD
SPI_RXD
SPI_CLK
SPI_IO
STA2416
SPI slave mode 32 bits
STw5094A CODEC
SPI master mode 32 bits
SPI_TXD
SPI_RXD
SPI_FRM
SPI_CLK
Bluetooth
reception
Stereo headset
32 SPI_CLK
16 SPI_CLK



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