11.1.10.2 System Power Consumption in Applicative Use Cases
Table 11-75 provides the processor power consumption in the following conditions:
- fCPU_CLK = 800 MHz
- fMCK1 = 200 MHz
- fMCK2 = 133 MHz
- fMCK3 = 266 MHz
- fMCK4 = 400 MHz
- fMCK5 = 200 MHz
- fMCK6 = 200 MHz
- fMCK7, MCK8, MCK9 = 100 MHz
- I & D caches are enabled.
- The external SDRAM memory is DDR3L.
- Use cases are run on Linux®.
- Current consumptions are measured according to the figure below. Note that current consumptions of external components (DDR3L, Gigabit Ethernet PHY, etc.) are counted.
- The ambient temperature is 25°C.
Use Case | Description |
---|---|
1 | Audio MP3 decoding and playback on I2S; MP3 file on USB mass storage |
2 | SAMA7D6 running as iPerf server |
3 | Running Bonnie++ on USB mass storage |
4 | SAMA7D6 downloads a file from GMAC0 and copies this file to USB mass storage |
5 | Test pattern display using mode test (720x1280 DSI panel @ 60 Hz) |
6 | Linux idle |
Use Case | Power Consumption (mW) | ||||
---|---|---|---|---|---|
VDDCORE 1.05V |
VDDCPU 1.15V |
VDDIODDR 1.35V |
VDDIN33 VDDUTMII 3.3V |
Total | |
1 | 190 | 50 | 62 | 610 | 912 |
2 | 198 | 127 | 119 | 832 | 1275 |
3 | 191 | 154 | 74 | 551 | 971 |
4 | 190 | 65 | 80 | 890 | 1225 |
5 | 203 | 30 | 90 | 488 | 811 |
6 | 187 | 44 | 50 | 465 | 746 |