Image Processing Reference
In-Depth Information
VMON7
VMON3
VMON6
VMON2
VMON4
VMON5
V M ON1
( a)
(b )
(c )
(d )
(e)
(f)
Fig. 12. Measured supply-noise maps for Dhrystone execution. (a) APL-RT CPU and AP-SYS
CPU are consuming only clock power; (b) the Dhrystone program has just started in APL-RT
CPU; (c) the local supply noise is at its maximum; (d) the AP-SYS CPU shows a supply
“bounce” due to an inductive effect; (e) A typical situation where the APL-RT CPU executes
Dhrystone and (f) both CPUs show a supply bounce due to an inductive effect. Although the
seven measurement points are insufficient for showing in a 3D surface expression, this
expression helps to understand the voltage relation between these points.
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