stm32-data/data/registers/opamp_u0.yaml

block/OPAMP:
  description: OPAMP address block description.
  items:
  - name: CSR
    description: OPAMP control/status register.
    byte_offset: 0
    fieldset: CSR
  - name: OTR
    description: OPAMP offset trimming register in normal mode.
    byte_offset: 4
    fieldset: OTR
  - name: LPOTR
    description: OPAMP offset trimming register in low-power mode.
    byte_offset: 8
    fieldset: LPOTR
fieldset/CSR:
  description: OPAMP control/status register.
  fields:
  - name: OPAMPEN
    description: Operational amplifier Enable.
    bit_offset: 0
    bit_size: 1
  - name: OPALPM
    description: Operational amplifier Low Power Mode. The operational amplifier must be disable to change this configuration.
    bit_offset: 1
    bit_size: 1
    enum: OPALPM
  - name: OPAMODE
    description: Operational amplifier PGA mode.
    bit_offset: 2
    bit_size: 2
    enum: OPAMODE
  - name: PGA_GAIN
    description: Operational amplifier Programmable amplifier gain value.
    bit_offset: 4
    bit_size: 2
    enum: PGA_GAIN
  - name: VM_SEL
    description: 'Inverting input selection. These bits are used only when OPAMODE = 00, 01 or 10. 1x: Inverting input not externally connected. These configurations are valid only when OPAMODE = 10 (PGA mode).'
    bit_offset: 8
    bit_size: 2
    enum: VM_SEL
  - name: VP_SEL
    description: Non inverted input selection.
    bit_offset: 10
    bit_size: 1
    enum: VP_SEL
  - name: CALON
    description: Calibration mode enabled.
    bit_offset: 12
    bit_size: 1
    enum: CALON
  - name: CALSEL
    description: Calibration selection.
    bit_offset: 13
    bit_size: 1
    enum: CALSEL
  - name: USERTRIM
    description: allows to switch from factory AOP offset trimmed values to AOP offset user trimmed values This bit is active for both mode normal and low-power.
    bit_offset: 14
    bit_size: 1
    enum: USERTRIM
  - name: CALOUT
    description: Operational amplifier calibration output During calibration mode offset is trimmed when this signal toggle.
    bit_offset: 15
    bit_size: 1
  - name: OPA_RANGE
    description: Operational amplifier power supply range for stability All AOP must be in power down to allow AOP-RANGE bit write. It applies to all AOP embedded in the product.
    bit_offset: 31
    bit_size: 1
    enum: OPA_RANGE
fieldset/LPOTR:
  description: OPAMP offset trimming register in low-power mode.
  fields:
  - name: TRIMLPOFFSETN
    description: Low-power mode trim for NMOS differential pairs.
    bit_offset: 0
    bit_size: 5
  - name: TRIMLPOFFSETP
    description: Low-power mode trim for PMOS differential pairs.
    bit_offset: 8
    bit_size: 5
fieldset/OTR:
  description: OPAMP offset trimming register in normal mode.
  fields:
  - name: TRIMOFFSETN
    description: Trim for NMOS differential pairs.
    bit_offset: 0
    bit_size: 5
  - name: TRIMOFFSETP
    description: Trim for PMOS differential pairs.
    bit_offset: 8
    bit_size: 5
enum/CALON:
  bit_size: 1
  variants:
  - name: Normal
    description: Normal mode.
    value: 0
  - name: Calibration
    description: Calibration mode (all switches opened by HW).
    value: 1
enum/CALSEL:
  bit_size: 1
  variants:
  - name: NMOS
    description: NMOS calibration (200mV applied on OPAMP inputs).
    value: 0
  - name: PMOS
    description: PMOS calibration (VDDA-200mV applied on OPAMP inputs).
    value: 1
enum/OPALPM:
  bit_size: 1
  variants:
  - name: Normal
    description: operational amplifier in normal mode.
    value: 0
  - name: LowPower
    description: operational amplifier in low-power mode.
    value: 1
enum/OPAMODE:
  bit_size: 2
  variants:
  - name: Disable
    description: internal PGA disable.
    value: 0
  - name: Disable2
    description: internal PGA disable. (Duplicate)
    value: 1
  - name: Enable
    description: internal PGA enable, gain programmed in PGA_GAIN.
    value: 2
  - name: Follower
    description: internal follower.
    value: 3
enum/OPA_RANGE:
  bit_size: 1
  variants:
  - name: Low
    description: Low range (VDDA < 2.4V).
    value: 0
  - name: High
    description: High range (VDDA > 2.4V).
    value: 1
enum/PGA_GAIN:
  bit_size: 2
  variants:
  - name: Gain2
    description: internal PGA Gain 2.
    value: 0
  - name: Gain4
    description: internal PGA Gain 4.
    value: 1
  - name: Gain8
    description: internal PGA Gain 8.
    value: 2
  - name: Gain16
    description: internal PGA Gain 16.
    value: 3
enum/USERTRIM:
  bit_size: 1
  variants:
  - name: Factory
    description: Factory trim code used.
    value: 0
  - name: User
    description: User trim code used.
    value: 1
enum/VM_SEL:
  bit_size: 2
  variants:
  - name: VINM
    description: GPIO connected to VINM (valid also in PGA mode for filtering).
    value: 0
  - name: NotConnected
    description: Inverting input not externally connected. These configurations are valid only when OPAMODE = 10 (PGA mode)
    value: 2
enum/VP_SEL:
  bit_size: 1
  variants:
  - name: VINP
    description: GPIO connected to VINP.
    value: 0
  - name: DAC
    description: DAC connected to VINP.
    value: 1