Datasheet

LPC11U6x All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 1.2 — 26 May 2014 56 of 96
NXP Semiconductors
LPC11U6x
32-bit ARM Cortex-M0+ microcontroller
11.2 CoreMark data
The CoreMark scores serve as a guideline to select the best power mode for a given
application. To find the most suitable power mode, run the application in mode and
compare power consumption and performance.
Remark: Applications using the USB can only run in default mode.
Measured with Keil uVision v.4.72. Measured with Keil uVision v.4.60.
Conditions: Conditions: V
DD
= 3.3 V; active mode; all peripherals except one UART and the SCTimer disabled in the
SYSAHBCLKCTRL register; internal pull-up resistors enabled; BOD disabled.
Fig 21. CoreMark score for different power mode settings of the power profiles
aaa-011173
0 10 20 30 40 50
1
1.25
1.5
1.75
2
2.25
2.5
system clock frequency (MHz)
CM
CM
CM
(((iterations/s)/MHz))
(((iterations/s)/MHz))
(((iterations/s)/MHz))
cpu performance
cpu performance
cpu performance
efficiency
efficiency
efficiency
default/low-current
default/low-current
default/low-current
aaa-011174
0 10 20 30 40 50
1
1.25
1.5
1.75
2
2.25
2.5
system clock frequency (MHz)
CM
CM
CM
(((iterations/s)/MHz))
(((iterations/s)/MHz))
(((iterations/s)/MHz))
cpu performance
cpu performance
cpu performance
efficiency
efficiency
efficiency
default/low-current
default/low-current
default/low-current
Measured with Keil uVision v.4.72. Measured with Keil uVision v.4.60.
Conditions: Conditions: V
DD
= 3.3 V; active mode; all peripherals except one UART and the SCTimer/PWM disabled in the
SYSAHBCLKCTRL register; internal pull-up resistors enabled; BOD disabled.
Fig 22. Active mode: CoreMark power consumption I
DD
for different power mode settings of the power profiles
aaa-011175
0 10 20 30 40 50
0
2.5
5
7.5
10
12.5
15
system clock frequency (MHz)
I
DDDD
I
DD
(mA)(mA)(mA)
cpu performancecpu performancecpu performance
defaultdefaultdefault
efficiencyefficiencyefficiency
low-currentlow-currentlow-current
aaa-011176
0 10 20 30 40 50
0
2.5
5
7.5
10
12.5
15
system clock frequency (MHz)
I
DDDD
I
DD
(mA)(mA)(mA)
defaultdefaultdefault
cpu performancecpu performancecpu performance
efficiencyefficiencyefficiency
low-currentlow-currentlow-current