參數資料
型號: EVAL-ADAU1442EBZ
廠商: Analog Devices Inc
文件頁數: 40/93頁
文件大小: 0K
描述: BOARD EVAL FOR ADAU1442
標準包裝: 1
系列: SigmaDSP®
主要目的: 音頻,音頻處理
嵌入式: 是,DSP
已用 IC / 零件: ADAU1442
主要屬性: 單芯片多通道 28/56 位音頻 DSP
次要屬性: I²C & SPI 接口
已供物品: 電路板,線纜,說明文檔,GPIO 子板,電源
ADAU1442/ADAU1445/ADAU1446
Data Sheet
Rev. D | Page 44 of 92
Table 30. Bit Descriptions of Serial Output Port Modes Registers
Bit Position
Description
Default
15
Clock output enable1
0
0 = LRCLK and BCLK output pins disabled
1 = LRCLK and BCLK output pins enabled
14
Frame sync type
0
0 = LRCLK 50/50 duty cycle clock signal (square wave)
1 = LRCLK synchronization pulse (narrow pulse)
[13:10]
Clock domain master/slave select1
Address specific2
0000 = slave to Clock Domain 9 (Port 0)
0001 = slave to Clock Domain 10 (Port 1)
0010 = slave to Clock Domain 11 (Port 2)
0011 = slave to Clock Domain 3 (Port 3)
0100 = slave to Clock Domain 4 (Port 4)
0101 = slave to Clock Domain 5 (Port 5)
0110 = slave to Clock Domain 6 (Port 6)
0111 = slave to Clock Domain 7 (Port 7)
1000 = slave to Clock Domain 8 (Port 8)
1001 = master, clock is fS,NORMAL
1010 = master, clock is fS,DUAL
1011 = master, clock is fS,QUAD
9
Serial output BCLK polarity
0
0 = negative BCLK polarity
1 = positive BCLK polarity
8
Serial output LRCLK polarity
0
0 = negative LRCLK polarity
1 = positive LRCLK polarity
[7:6]
Word length
00
00 = 24 bits3
11 = flexible TDM mode4
[5:3]
MSB position
000
000 = I2S (delayed by 1)
001 = left justified (delayed by 0)
010 = delayed by 8
011 = delayed by 12
100 = delayed by 16
[2:0]
TDM type
000
000 = TDM2 (stereo)
001 = TDM4
010 = TDM8 or flexible TDM mode4
011 = TDM16
100 = packed TDM4
1
Bit 15 and Bits[13:10] must be used in conjunction to set the port as a master or slave.
2
The default depends on the address: 0x040 = 0000, 0xE041 = 0001, 0xE042 = 0010, 0xE043 = 0011, 0xE044 = 0100, 0xE045 = 0101, 0xE046 = 0110, 0xE047 = 0111,
0xE048 = 1000, and 0xE049 = 1001.
3
Excluding when the serial port is configured in flexible TDM mode, it will always output 24-bit data.
4
To activate flexible TDM mode, both Bits[7:6] and Bits[2:0] must be set.
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