LM3S1G21 Datasheet, PDF (35/955 Pages) Texas Instruments – Stellaris® LM3S1G21 Microcontroller

Stellaris^® LM3S1G21 Microcontroller
Figure 1-1. Stellaris LM3S1G21 Microcontroller High-Level Block Diagram
JTAG/SWD
System
Control and
Clocks
(w/ Precis. Osc.)
LM3S1G21
ARM®
Cortex™-M3
(80MHz)
ROM
Boot Loader
DriverLib
AES & CRC
NVIC
DCode bus
MPU
ICode bus
System Bus
Flash
(384KB)
Bus Matrix
SRAM
(64KB)
DMA
General-
Purpose
Timer (4)
External
Peripheral
Interface
I2C
(2)
Analog
Comparator
(2)
SYSTEM PERIPHERALS
Watchdog
Timer
(2)
Hibernation
Module
GPIOs
(67)
SERIAL PERIPHERALS
UART
(3)
SSI
(2)
ANALOG PERIPHERALS
12- Bit ADC
Channels
(8)
January 22, 2012
35
Texas Instruments-Production Data