1. MIPS/PIC3 – Arhitectura PIC32 – set instructiuni
Embedded Computer – Master 2009
Curs9
MIPS/PIC3 – Arhitectura
PIC32 – set instructiuni
MIPS PIC32 – functii I/O
PIC32 – C i/o port
Lab.9 – Intreruperi Timer1
Extensii NXT

2. MIPS – Nucleu centarl - Full 32-bit RISC technology
- Register-based processor
- Five stage pipeline
- MIPS16e for improved code density
- Virtual addresses with fixed mapping
- Multi-segment memory model
- User and Kernel Mode

3. MIPS – Instruction Set Architecture

4. MICROCHIP - MCU

5. PIC32 – Arhitectura

6. PIC32 –

7. PIC/MIPS –

8. MIPS –Prefech Fetches 128-bit data 􀁏 4x32-bit instructions
􀁏 Up to 80 MIPS of
linear execution
􀁏 256 Bytes Cache
􀁏 16 total lines
􀁏 Up to 4 data lines
􀁏 Lockable Lines

9. Operatii multiple 1

10. USB

11. PIC32- platforme de dezvoltare

12. PIC32– Generator clock

13. MIPS – Registre generale – C32

14. MIPS C32 - Atomic bit manipulation
Atomic bit manipulation via special SET, CLR,
& INV registers allows faster operations
Operates on corresponding base register
Only bits specified as ‘1’ are modified
Writing 0x0001 to TRISASET register sets only bit 0 in base register TRISA
Writing 0x0020 to PORTDCLR register clears only bit
5 in base register PORTD
Writing 0x9000 to LATCINV register inverts only bits
15 and 12 in the base register LATC

15. MIPS C32 – Fisier initializare crt0.o
Compiler’s crt0.o performs processor initialization
- Initialize Stack, Heap and Global pointers
- Clear Uninitialized Data Sections
- Copy Initialized Data Flash to Data Memory
- Copy RAM Functions from Program Flash to Data Memory
- Initialize CP0 Registers
- Initialize Exception Vectors
- Call main()

16. PIC32 – POSC/FRC

17. PIC32 - Timer 1

18. MIPS

19. MIPS

20. MIPS

21. NXT – Hello world