11.1.9.2 System Power Consumption in Applicative Use
Cases
Table 11-64 provides the processor power consumption in the
following conditions:
fCPU_CLK = 800 MHz
fMCK = 266 MHz
I & D caches enabled
External SDRAM memory: DDR3L operating at 266
MHz
Use cases are run on Linux
Current consumptions are measured according to
Figure 11-43. Note that external component
current consumptions are not counted. Either the 24-bit display or the 8-bit image
sensor is connected to the SAM9X7 Series device, but not both.
Table 11-63. Use Case Definition
Use Case
Description
1
After Linux boot root prompt
2
Running 2D graphics benchmark with EGT monitor (800x480 DSI panel @ 46 fps) - 22% CPU
usage
3
SAM9X70 running as iPerf server
4
Run Bonnie++ on USB mass storage
5
Image sensor video recording with QVGA resolution - 10 fps
Figure 11-43. Current Measurement for
Applicative Use Cases
Table 11-64. Power Consumption in Applicative
Use Cases at TA = 25°C
Power Input
Voltage Level (V)
Power
Consumption vs Use Case (mW)
#1
#2
#3
#4
#5
VDD_3V3
3.3
165
125
165
116
330
VDDCORE
1.15
132
132
167
207
196
VDDIOM
1.35
27
43
95
41
53
DS60001813E
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
