參數(shù)資料
型號(hào): XE3005I033
廠商: Electronic Theatre Controls, Inc.
元件分類: Codec
英文描述: Low-Power Audio CODEC
中文描述: 低功耗音頻CODEC
文件頁數(shù): 15/32頁
文件大?。?/td> 465K
代理商: XE3005I033
Data Sheet
XE3005/XE3006
15
D0212-116
3.3.2
SPI Interface Modes
There are two SPI modes: read and write.
3.3.2.1
Read Mode
Read communication always takes place in pairs of bytes. A read request of 2 bytes is sent on the MOSI line.
The content of the addressed register, one byte, is dumped on the MISO line during the transmission of the
second byte on the MOSI. The formats of one byte are the following:
bit
7
6
5
mosi
1
1
0
4
msb A (4:0) lsb
4
3
2
3
2
1
0
bit
miso
7
6
5
1
0
msb D(7:0) lsb
ss
sck
mosi
miso
request (read <address A(4:0)>)
read data D(7:0) of address A(4:0)
msb
lsb
A1
0
1
1
A4
A2
A0
A3
1
1
0
Figure 16: SPI signal timing in read mode
3.3.2.2
Write Mode
Write communication always takes place in pairs of bytes. The format of the 2 bytes is:
Bit
7
6
mosi
1
0
5
0
4
3
2
1
0
msb A(4:0) lsb
4
3
2
Bit
mosi
7
6
5
1
0
msb D(7:0) lsb
ss
sck
mosi
request (write to address A(4:0))
write data D(7:0) to address A(4:0)
1
0
0
A4
A2
A
1
A0
A3
msb
lsb
Figure 17: SPI signal timing in write mode
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