Silicon Laboratories C8051F411 User Manual page 6

C8051F411-EK
UP/
DOWN
(UP/DOWN to cycle
4.2.1. SET MHZ
In this menu option, the system clock speed can be set to one of a few different settings. When selected, the
following will appear in the lower section of the LCD:
3 MHZ
Use the UP and DOWN keys to cycle through the various system clock options. The available system clock
settings are 3, 6, 12, 24, and 50 MHz.
Press SELECT to change the SYSCLK and go back to the Demo mode display. Press MENU to go back to the
Demo mode display without changing the system clock.
4.2.2. SET VREG
In this menu option, the output voltage of the regulator can be set. When selected, the following will appear in the
lower section of the LCD:
2.5 VREG
Use the UP and DOWN keys to cycle between 2.1 and 2.5 V. Press SELECT to change the core voltage and go
back to the Demo mode display. Press MENU to go back to the Demo mode display without changing the core
voltage.
4.2.3. KEEP
Select KEEP to go back to Keepsake mode.
6
DEMO Mode
System Clock Speed /
Core Voltage /
Temperature
DEMO MENU Mode
SET MHZ SET VREG
UP/
DOWN
SELECT
3 MHZ
(UP/DOWN to
through system cycle through
clock options) voltage options)
SELECT
Changes Changes core
SYSCLK and voltage and
returns to
DEMO Mode DEMO Mode
Figure 4. Demo Mode Menu Options
Time
MENU
KEEP
UP/
DOWN
SELECT
Returns to
2.5 VREG
KEEPSAKE
Mode
SELECT
returns to
Rev. 0.1
UP/
DOWN
SELECT
Pressing MENU at
any time will return
the program to the
Demo Mode