1

2

3

4

RegisterBank

ALUInst

ruct

ion

Fetc

h un

itM e m o r y I n t e r f a c e

Dec

oder

Trac

e In

terfac

e

Inte

rrup

t Con

trol

ler

(NVIC

)

P r o c e s s o r C o r e S y s t e m

DebugSystem

MemoryProtectionSystem

B u s I n t e r c o n n e c t DebugInterface

CodeMeomory

Memory Systemand Perpherals

PrivatePerpherals

C o r t e x - M 3

I n s t r u c t i o n B u s D a t a B u s

Trace

Debug

Interrupts

Optional

5

6

7

8

9

10

8.4 Register MapTable 8-7 on page 413 lists the GPIO registers. Each GPIO port can be accessed through one of two bus apertures.

The legacy aperture, the Advanced Peripheral Bus (APB), is backwards-compatible with previous Stellaris parts.

The other aperture, the Advanced High-Performance Bus (AHB), offers the same register map but provides better back-to-back access performance than the APB bus.

The offset listed is a hexadecimal increment to the register’s address, relative to that GPIO port’s base address

Port Base address(APB) Base address (AHB)

12

13

14

15

16

17

Attention: The Demo Projects are in c:\arm\StellarisWare for C1\codes\ExperimentMoreover ， you can find the datasheet in C:\arm\datasheet.rar. But your projects can not be saved in disk C:,which is cleared when the computer is restarted every time. So please save your files in e:\yourname.If you want to bring your work back to home, copy your files in your U disk.

Please visit http://www.keil.com/uvisionNew File FTP ： Keil uv4.pdr Keil free version: eelab.sjtu.edu.cn\es\Developing Kit.rar