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The input part of the spreadsheet consists of the following three sections: Processing Elements, Interfaces, and Power Report.
To use the input part of the spreadsheet, users must modify the fields with their appropriate usage parameters. Cells designed for user input are in yellow. Fields that cannot be modified are gray. Fields in blue are the output calculated power. Configure the yellow cells to a value most closely aligned with your intended scenario.
The purpose of each of these sections is:
This section describes how to set operating frequency, mode, and how to load each compute core with utilization between 0%-100% (inclusive). Table 1-1 lists the selectable options.
| Processing Element | Frequency | Utilization |
|---|---|---|
| C66x DSP | 450 MHz, 300 MHz, 0 MHz | 0 – 100% |
| HWA | 400 MHz | 0 – 100% |
| R5F | 400 MHz, 200 MHz | 0 – 100% |
| HSM(Hardware Security Module) | 400 MHz | 0 – 100% |
This section describes how to select both modes and utilization of the subset of commonly used interfaces on the AM273x, including CSI2, QSPI, Aurora, Ethernet, McASP, CAN, and SPI. Table 1-2 lists the selectable options.
| Interface | Mode | Utilization |
|---|---|---|
| CSI2 |
Lane – 1,2,3,4 Mbps – 300, 600 |
N/A |
| Aurora LVDS | OFF, 150, 225, 400,450,600 and 900 mbps | N/A |
| QSPI | Master, Slave, 67 Mbaud, 60 Mbaud and 40 Mbaud | 0-100 % |
| Ethernet | RGMII,RMII, MII, 10, 100, 1.8v, 3.3v, Off, Unused | 0-100 % |
| CAN A MSS | 250kbps, 1,5, 8 mbps, 1.8V, 3.3V, Off, Unused | 0-100% |
| SPI A MSS | Master, Slave, 1.563, 2.083, 3.125, 6.25, 12.5, 25 mbps, 1.8V, 3.3V, Off, Unused | 0-100% |