1.2.9. Power supply control

Interface logic on the Core Tile enables you to read different supply voltages. The current drawn by the test can also be read, however this requires the sense resistors on the circuit board to be replaced.

On some tiles, the interface logic also enables you to control the core voltages or shut down the voltage regulators from software. The voltage control range is set when the board is manufactured. Core voltages can be switched off to test power saving modes.

By default, the memory modules and the test chip I/O voltage level is 3.3V. Links on the Core Tile allow a different I/O voltage to be selected.

Copyright © 2004-2011 ARM Limited. All rights reserved.ARM DUI 0273G