LM3S812_16 Datasheet, PDF (42/590 Pages) Texas Instruments – Stellaris LM3S812 Microcontroller

Architectural Overview
1.4.9
System Block Diagram
Figure 1-2. LM3S812 Controller System-Level Block Diagram
VDD_3.3V
LDO
GND
LDO
VDD_2.5V
ARM Cortex-M3
(50 MHz)
CM3Core
NVIC
DCode
ICode
Flash
(64 KB)
Debug Bus
OSC0
OSC1
RST
IOSC PLL
POR
BOR
System
Control
& Clocks
GPIO Port A
APB Bridge
SRAM
(8 KB)
Watchdog
Timer
GPIO Port B
PA5/SSITx
PA4/SSIRx
PA3/SSIFss
PA2/SSIClk
PA1/U0Tx
PA0/U0Rx
PC6/CCP3
PC3/TDO/SWO
PC2/TDI
PC1/TMS/SWDIO
PC0/TCK/SWCLK
PC7/CCP4
PC4
PC5
PE0
PE1
PE2
PE3/CCP1
ADC1
ADC0
LM3S812
SSI
UART0
GPIO Port C
JTAG
SWD/SWO
GP Timer2
GPIO Port E
ADC
Temperature
Sensor
Analog
Comparator
Master
I²C
Slave
GP Timer0
GPIO Port D
PWM0
UART1
GP Timer1
PB7/TRST
PB6/C0+
PB4/C0-
PB3/I2CSDA
PB2/I2CSCL
PB1
PB0/CCP0
PB5/CCP5
PD6/Fault
PD0/PWM0
PD1/PWM1
PD2/U1Rx
PD3/U1Tx
PD4
PD5/CCP2
PD7/C0o
42
July 14, 2014
Texas Instruments-Production Data