adau1781bcpz-rl Analog Devices, Inc., adau1781bcpz-rl Datasheet - Page 81

• Manufacturer Part Number: adau1781bcpz-rl
• Description: Low Noise Stereo Codec With Sigmadsp Processing Core
• Manufacturer: Analog Devices, Inc.

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.
Table 70. Digital Power-Down 0 Register
Bit
7
6
5
4
3
2
1
0
Description
ADC engine
0: disabled
1: enabled
Memory controller
0: disabled
1: enabled
Clock domain transfer (when using the serial ports)
0: disabled
1: enabled
Serial ports
0: disabled
1: enabled
Serial output routing
0: disabled
1: enabled
Serial input routing
0: disabled
1: enabled
Serial port, ADC, DAC, and frame pulse clock generator
0: disabled
1: enabled
SigmaDSP core
0: disabled
1: enabled
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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.
Default
0
0
0
0
0
0
0
0
ADAU1781