AM261x TRM Revision History
Changes from March 21, 2025 to May 20, 2025 (from Revision A (March 2025) to Revision B (May 2025))
- Removed EARLY PRELIMINARY INFORMATION noteGo
- Added note on silicon errata associated with OSPI0_RESET_OUT0
configuration in boot ROM.Go
- Added note on industrial-grade AM261x device core voltage
requirement.Go
- [PRU-ICSS eCAP Capture Mode Description] Added Capture Mode Functional Block Diagram.Go
- [PRU-ICSS eCAP Module APWM Mode Operation] Adding APWM Mode Timing WaveformGo
- [ADC] Updated and resolved some inconsistencies regarding the exact voltage rail to reference buffer connections.Go
- Updated DACOUT formulaGo
- FSI: Updated PING to External Trigger Sources and Index for
AM263PGo
- [I2C Interface Typical Connections] Updated the I/O signals table
counts.Go
- (Address Table Entry): Updated IPv4 and IPv6 Table Entry sections to fix entry definitions and expand on IPv6 table entry operationGo
- [MMCSD Features] Removed 8-bit mode from feature list, as it is not
supported on AM26x.Go
- Updated diagrams for 4-bit MMCSD. 8-bit not supported on AM26x
devices.Go
- [MMCSD Pin List] Removed 8-bit mode signals from
tables.Go
- [MMC/SD/SDIO Connected to an MMC, an SD Card, or an SDIO Card] Removed 8-bit mode
pins and modified diagrams.Go
- [DMA Receive Mode]
Updated figure to only show 4-bit mode. 8-bit mode
is not supported on AM26x.Go
- [DMA Transmit Mode] Updated figure to only show 4-bit mode. 8-bit
mode is not supported on AM26x.Go
- [Busy Timeout for R1b, R5b Response Type] Updated timing diagram to
remove 8-bit mode. AM26x does not support 8-bit mode.Go
- [Busy Timeout After Write CRC Status] Updated timing diagram to
remove 8-bit mode. AM26x does not support 8-bit mode.Go
- [Write CRC Status Timeout] Updated timing diagram to remove 8-bit
mode. AM26x does not support 8-bit mode.Go
- [Read Data Timeout] Updated timing diagram to remove 8-bit mode. AM26x does
not support 8-bit mode.Go
- Updated Message RAM Address range
table for AM263PGo
- Moved all the content to the
subsectionGo
- Updated the overall contentGo
Changes from November 1, 2024 to March 21, 2025 (from Revision * (November 2024) to Revision A (March 2025))
- Updated digital control peripherals features Go
- Updated memory addresses for Lockstep and Dual-core modesGo
- Updated memory map for Lockstep and Dual core modesGo
- Added clarification on difference between System MPU and R5
MPUGo
- [USB] Added additional integration details.Go
- Added Content of Initialization ChapterGo
- [IP Blocks] Changing SCIA to UART0 in UART Boot row.Go
- [IP Blocks] Added filtering for OSPI bootmodesGo
- Device Config: Changed integration for AM261x to have 2 R5FSS Cores
and WARMRST from Thermal Manager.Go
- Added clarification that section MPU Interrupt Aggregator is about
System MPUsGo
- Updated Flash IO power net description for clarity and example
usage.Go
- [Power Management Overview] Added definitions for FROM and 1.8V
Analog supplies.Go
- Added reference to ARM documentation for details on R5
MPUGo
- [PRU-ICSS Overview] updated information for AM261x - two instances
of PRU-ICSS subsystem.Go
- [PRU-ICSS Internal Pinmux] added notes for AM261x that PR1/ICSS1
also applies to the diagrams in this section.Go
- [PRU-ICSS I/O Signals] changed first column in table to be PR<k> instead
of PR0 to represent multiple instances of PRU-ICSS (if applicable)Go
- [PRU-ICSS I/O Signals] updated AM26x filters to include
AM261x.Go
- [PRU-ICSS Integration] Updating for ICSS1 integration
details.Go
- [PRU-ICSS Top Level Resources Functional Description] Added details for devices with
>1 ICSS instance.Go
- [PRU-ICSS CORE Clock Generation] added note for devices with >1 ICSS
module.Go
- [PRU-ICSS eCAP Capture Mode Description] Added Capture Mode Functional Block Diagram.Go
- [PRU-ICSS eCAP Module APWM Mode Operation] Adding APWM Mode Timing WaveformGo
- Added New Steps #2 and #3 in the Generate Operation SequenceGo
- Added a Clarification Note to Step #2, and Added a New Step #3 in the Clock Configuration for First Random Value Generation SequenceGo
-
Section 7.5.2.3.1: Added note regarding maximum ADCCLK frequency (66.67MHz)
and minimum PRESCALE value (>=3)Go
- [ADC] Updated Table ADC Input Selection Logic to improve clarity.Go
- (ADC-CMPSS Signal Connections): Added sectionGo
- External Channel Selection: Details regarding ADC external mux channels have been included.Go
- Inducing links to ADC Open-short Detection (OSD) API and related SDK exampleGo
- Added note to step 2 in Section 7.5.2.17
Go
- Updated for AM261x.Go
- [CMPSS Features] Updated for AM261x - removed CMPSSB mentions and
diagram and updated feature list.Go
- [CMPSS Block Diagram] updated for AM261x, removed CMPSSB Go
- (ADC-CMPSS Signal Connections): Added sectionGo
- [CMPSS Programming Guide] Added programming guide links for
AM261xGo
- Time-Base Counter Synchronization: Added note on delay from internal control module to target module.Go
- [EPWM Programming Guide] Added EPWM Programming Guide links for
AM261xGo
- Added two note pointsGo
- [ECAP Programming Guide] Added eCAP Programming Guide section for
AM261xGo
- Changed fourth paragraph and added Note in Section 7.5.7.7
Go
- Added Section 7.5.7.10
Go
- [EQEP Programming Guide] Added eQEP Programming Guide to show API
and driver information for AM261xGo
- Added programming guide for SDFM for AM261xGo
- Deleted the first paragraph for AM26x Devices as there is no
reference to the UART hardware requests that is mentioned in the first
paragraphGo
- [USB]
Added xHCI backwards compatibility
support.Go
- [USB] Added additional integration details.Go
- [USB] Changed USB clock source table to reflect clocks used in
AM261. Changed PHY_CLK max frequency.Go
- Updated the FSS Overview sectionGo
- Updated the FSS detailed block DiagramGo
- Updated the Digital watchdog operation diagramGo