Datasheet

Figure 5-4. Power Architecture
I/O Buffers
Analog circuits
Low-noise
LDO
Internal
Logic and PLL
GND
GND
GND
GND
GNDA
GND
GND
GND
GND
VDD
VDD
VDD
VDD
VDDA
VDDA
VDD25
VDD25
VDD25
VDD25
LDO
+3.3V
Ethernet
PHY
GNDPHY
GNDPHY
GNDPHY
GNDPHY
VCCPHY
VCCPHY
VCCPHY
VCCPHY
GNDA
VDD
5.2.4 Clock Control
System control determines the control of clocks in this part.
5.2.4.1 Fundamental Clock Sources
There are multiple clock sources for use in the device:
■ Internal Oscillator (IOSC). The internal oscillator is an on-chip clock source. It does not require
the use of any external components. The frequency of the internal oscillator is 12 MHz ± 30%.
181June 18, 2012
Texas Instruments-Production Data
Stellaris
®
LM3S8962 Microcontroller
NRND: Not recommended for new designs.