Reference Manual ADuCM356
TABLE OF CONTENTS
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Low-Power TIA Switch Configuration for
Channel 1 Register.........................................93
LPDAC0 Data Out Register..............................94
LPDAC0 Switch Control Register.....................94
LPDAC0 Control Register................................ 95
LPDAC1 Data Out Register..............................96
LPDAC1 Switch Control Register.....................96
LPDAC1 Control Register................................ 96
Low-Power Reference Control Register...........97
High-Speed TIA Circuits...................................... 98
Key Features....................................................98
Using DE0 and DE1 Inputs with the High-
Speed TIA...................................................... 99
External R
TIA
Selection...................................100
Register Summary: High-Speed TIA Circuits.... 101
Register Details: High-Speed TIA Circuits.........102
High-Speed R
TIA
Configuration Register........102
DE1 High-Speed TIA Resistor Configuration
Register........................................................102
DE0 High-Speed TIA Resistor Configuration
Register........................................................102
High-Speed TIA Amplifier Configuration
Register........................................................103
High-Speed DAC Circuits.................................. 104
High-Speed DAC Output Signal Generation.. 104
High-Speed DAC Core Power Modes............104
Recommended Configuration in Hibernate
Mode............................................................ 105
High-Speed DAC Filter Options..................... 105
High-Speed DAC Output Attenuation
Options.........................................................105
Coupling an AC Signal from High-Speed
DAC onto the DC Level Set by Low-Power
DAC..............................................................106
Avoiding Incoherency Errors Between
Excitation and Measurement Frequencies
During Impedance Measurements............... 106
Calibrating the High-Speed DAC....................106
Register Summary: High-Speed DAC Circuits.. 108
Register Details: High-Speed DAC Circuits.......109
High-Speed DAC Configuration Register.......109
Direct Write to DAC Output Control Value
Register........................................................109
DAC DC Buffer Configuration Register.......... 109
DAC Gain Register.........................................109
DAC Offset with Attenuator Enabled (Low-
Power Mode) Register..................................110
DAC Offset with Attenuator Disabled (Low-
Power Mode) Register..................................110
DAC Offset with Attenuator Enabled (High-
Power Mode) Register..................................110
DAC Offset with Attenuator Disabled (High-
Power Mode) Register.................................. 111
Waveform Generator Configuration Register..111
Waveform Generator for Sinusoid
Frequency Control Word Register................ 111
Waveform Generator for Sinusoid Phase
Offset Register..............................................112
Waveform Generator for Sinusoid Offset
Register........................................................ 112
Waveform Generator for Sinusoid Amplitude
Register........................................................ 112
Programmable Switches Connecting the
External Sensor to the High-Speed DAC and
High-Speed TIA............................................... 113
Dx Switches....................................................113
Px Switches.................................................... 113
Nx Switches....................................................113
Tx Switches.................................................... 113
Options for Controlling All Switches............... 113
Register Summary: Programmable Switches.... 116
Register Details: Programmable Switches........ 117
Switch Matrix Configuration Register............. 117
Dx Switch Matrix Full Configuration Register. 118
Nx Switch Matrix Full Configuration Register. 119
Px Switch Matrix Full Configuration Register. 120
Tx Switch Matrix Full Configuration Register. 121
Dx Switch Matrix Status Register...................122
Px Switch Matrix Status Register................... 123
Nx Switch Matrix Status Register...................124
Tx Switch Matrix Status Register................... 125
Sequencer......................................................... 127
Sequencer Features.......................................127
Sequencer Overview......................................127
Sequencer Commands...................................127
Sequencer Operation..................................... 128
Sequencer and FIFO Registers......................130
AFE Interrupts................................................... 136
Interrupt Controller Interrupts......................... 136
Configuring the Interrupts...............................136
Custom Interrupts...........................................136
Interrupt Registers..........................................137
Sleep and Wake-Up Timer................................ 143
Sleep and Wake-Up Timer Features.............. 143
Sleep and Wake-Up Timer Overview............. 143
Configuring a Defined Sequence Order......... 143
Recommended Sleep and Wake-Up Timer
Operation......................................................143
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