參數(shù)資料
型號: EVAL-ADAU1781Z
廠商: Analog Devices Inc
文件頁數(shù): 81/92頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR ADAU1781
標(biāo)準(zhǔn)包裝: 1
系列: SigmaDSP®
主要目的: 音頻編解碼器
嵌入式: 是,DSP
已用 IC / 零件: ADAU1781
主要屬性: 立體聲,24 位,8 ~ 96 kHz 采樣率,GUI 工具
次要屬性: *
已供物品: *
ADAU1781
Rev. B | Page 82 of 92
DIGITAL SUBSYSTEM CONFIGURATION
Register 16512 (0x4080), Digital Power-Down 0
Bit 7, ADC Engine
Setting this bit to 0 disables the ADCs and the digital micro-
phone inputs.
Bit 6, Memory Controller
Setting this bit to 0 disables all memory access, which disables
the SigmaDSP core, ADCs, and DACs, as well as prohibits memory
access via the control port.
Bit 5, Clock Domain Transfer
Setting this bit to 0—in conjunction with Bit 4, serial ports—
disables the serial ports.
Bit 4, Serial Ports
Setting this bit to 0—in conjunction with Bit 5, clock domain
transfer—disables the serial ports.
Bit 3, Serial Output Routing
Setting this bit to 0 disables the routing paths for the record signal
path, which goes from the SigmaDSP core to the serial port output.
Bit 2, Serial Input Routing
Setting this bit to 0 disables the routing paths for the play-
back signal path, which goes from the serial input ports to the
SigmaDSP core.
Bit 1, Serial Port, ADC, DAC, and Frame Pulse Clock
Generator
Setting this bit to 0 disables the internal clock generator, which
generates all master clocks for the serial ports, SigmaDSP core,
ADCs, and DACs. This bit must be enabled if audio is being
passed through the ADAU1781.
Bit 0, SigmaDSP Core
Setting this bit to 0 disables the SigmaDSP core and makes the
memory inaccessible. This bit must be enabled in order to
process audio and change parameter values.
Table 71. Digital Power-Down 0 Register
Bit
Description
Default
7
ADC engine
0
0: disabled
1: enabled
6
Memory controller
0
0: disabled
1: enabled
5
Clock domain transfer (when using the serial ports)
0
0: disabled
1: enabled
4
Serial ports
0
0: disabled
1: enabled
3
Serial output routing
0
0: disabled
1: enabled
2
Serial input routing
0
0: disabled
1: enabled
1
Serial port, ADC, DAC, and frame pulse clock generator
0
0: disabled
1: enabled
0
SigmaDSP core
0
0: disabled
1: enabled
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