SPRADP6A February   2025  – May 2025 AM2612 , AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1 , AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Power Net Checks
    1. 2.1 Verify Proper AM26x Power Rail Voltage Levels
    2. 2.2 Verify Maximum Current Loading
    3. 2.3 AM26x Power Sequencing
    4. 2.4 AM26x Power Topology References
  6. 3Device Boot Status
    1. 3.1 AM26x SOP Pin Status
    2. 3.2 SOP Boot Mode Latch Timing
    3. 3.3 AM26x SOP Pin Isolation
  7. 4Verify UART Output
    1. 4.1 Configure AM26x for UART Boot
    2. 4.2 Configure Host PC for UART Boot Validation
  8. 5Verify JTAG Connection
    1. 5.1 Configure AM26x for JTAG
    2. 5.2 Configure Host PC for JTAG Debug
    3. 5.3 Test the JTAG Connection
    4. 5.4 Connect to the AM26x R5F Core
  9. 6Loading and Executing a Code Example
    1. 6.1 Importing, Building, and Loading the Project
  10. 7Summary
  11. 8References
  12. 9Revision History

2.2 Verify Maximum Current Loading

After probing the AM26x device power nets, this is essential to verify that the maximum current loading on the device core and IO power nets are not being exceeded while the device is in an idle state. If current loading is being exceeded, then there is high risk for damage to the AM26x MCU and system once an application is run on the system. Table 2-2 details the peak power consumption that is not to be exceeded.

Table 2-2 Estimated Peak Power Consumption at 150°C Junction Temperature
Device
Supply Name		 Nominal
Voltage (V)		 AM263x
Peak Current (mA)		 AM263Px
Peak Current (mA)		 AM261x, R5F = 400MHz
Peak Current (mA)		 AM261x, R5F = 500MHzPeak Current (mA)(1) Supply Description
VDD, VDDAR 1.2 2500 2800 1750 1500 Digital core power
VDDS33 3.3 200 200 3.3V IOs Only 200 3.3V IOs Only 200 3.3V digital I/O power
1.8V and 3.3V IOs 120 1.8V and 3.3V IOs 120
VDDA33 3.3 100 200 100 100 3.3V analog I/O power
(1) Power consumption data for R5F = 500MHz is for 125°C junction temperature