SPRADB3A October   2023  – November 2024 AM2612 , AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1 , AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Feature Differences Between AM26x Devices
  5. 2 Package Options
  6. 3 Feature Differences Between AM263 and AM263P
    1. 3.1 Feature Differences for System Consideration
      1. 3.1.1 New Features in AM263P
        1. 3.1.1.1 Resolver Peripheral
          1. 3.1.1.1.1 Migration From Software to Hardware Resolver
        2. 3.1.1.2 Trigonometric Math Unit
        3. 3.1.1.3 Remote L2 Cache
      2. 3.1.2 Memory Subsystem Differences
      3. 3.1.3 CONTROLSS Module Differences
        1. 3.1.3.1 ADC Feature Differences and Additions
        2. 3.1.3.2 ADC Safety Tile Additions
        3. 3.1.3.3 ADC_R Module Addition
      4. 3.1.4 QSPI/OSPI Module Differences
      5. 3.1.5 Hardware Security Module Differences
      6. 3.1.6 Hardware Differences
        1. 3.1.6.1 Sourcing VPP With ANALDO
      7. 3.1.7 Feature Omissions in AM263P
  7. 4 Software Changes Between AM263 and AM263P SDK
  8. 5 Feature Differences Between AM263 and AM261 Devices
    1. 5.1 Feature Differences for System Consideration
      1. 5.1.1 New Features in AM261
        1. 5.1.1.1 Universal Serial Bus (USB)
        2. 5.1.1.2 Trigonometric Math Unit
        3. 5.1.1.3 Remote L2 Cache
      2. 5.1.2 Memory Subsystem Differences
      3. 5.1.3 CONTROLSS Module Differences
        1. 5.1.3.1 ADC Feature Differences and Additions
        2. 5.1.3.2 ADC Safety Tile Additions
      4. 5.1.4 CPSW Feature Additions
      5. 5.1.5 Hardware Differences
        1. 5.1.5.1 Sourcing VPP With ANALDO
      6. 5.1.6 Feature Reductions in AM261
  9. 6 Software Changes Between AM263 and AM261 SDK
  10. 7 Feature Differences Between AM263P and AM261 Devices
    1. 7.1 Feature Differences for System Consideration
      1. 7.1.1 New Features in AM261
        1. 7.1.1.1 General-Purpose Memory Controller (GPMC)
        2. 7.1.1.2 Universal Serial Bus (USB)
      2. 7.1.2 Memory Subsystem Differences
      3. 7.1.3 CPSW Feature Additions
      4. 7.1.4 ADC Module Differences
      5. 7.1.5 Feature Omissions and Reductions in AM261
  11. 8 Software Changes Between AM263P and AM261 SDK
  12. 9 List of Errata Fixes in AM26x Devices
  13. 10Revision History

3.1.1.1 Resolver Peripheral

Certain variants of the AM263P comes with a Resolver peripheral that provide two Resolver to Digital Converters (RDC) with dedicated ADCs. This feature is included in AM263P devices available in the ZCZ-S package and has a special feature code of F or S. For details about feature codes, see the Device Naming Convention table in the device-specific data sheet.

The Resolver to Digital Converter can process incoming digital data from ADCs to estimate the angle of the rotor and the angular velocity. The RDC is able to generate excitation sine PWM at frequencies of 5, 10, and 20kHz (with configurable amplitude and phase) and synchronizes sampling across sine or cosine channels. Offset, gain, and phase corrections, demodulation, and angle outputs or velocity outputs (or both) are done at the same rate as the excitation frequency. The RDC also provides safety diagnostics and observational data for the application that can be used for safety improvements.

If the resolvers are not used, it is possible to configure the associated dedicated SAR ADCs into general purpose ADCs that have four channels each with 12-bit resolution and 3MSPS sample rate. These ADC modules also do not have an associated comparator subsystem.