1. The TMS320C6x Family of DSPs
Lecture 5
The TMS320C6x Family of DSPs

2. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Features
High-Performance Fixed-Point Digital Signal Processor (TMS320C6413/C6410)
− TMS320C6413
2-ns Instruction Cycle Time
500-MHz Clock Rate
4000 MIPS
− TMS320C6410
2.5-ns Instruction Cycle Time
400-MHz Clock Rate
3200 MIPS
Eight 32-Bit Instructions/Cycle
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

3. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Features
Eight Highly Independent Functional Units
Six ALUs (32-/40-Bit), Each Supports Single 32-Bit, Dual 16-Bit, or Quad 8-Bit Arithmetic per Clock Cycle
Two Multipliers Support Four 16 x 16-Bit Multiplies (32-Bit Results) per Clock Cycle or Eight 8 x 8-Bit Multiplies (16-Bit Results) per Clock Cycle
Load-Store Architecture
64 32-Bit General-Purpose Registers
Instruction Packing Reduces Code Size
All Instructions Conditional
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

4. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Features
L1/L2 Memory Architecture
− 128K-Bit (16K-Byte) L1P Program Cache (Direct Mapped)
− 128K-Bit (16K-Byte) L1D Data Cache (2-Way Set-Associative)
− 2M-Bit (256K-Byte) L2 Unified Mapped RAM/Cache [C6413]
− 1M-Bit (128K-Byte) L2 Unified Mapped RAM/Cache [C6410]
Endianess: Little Endian, Big Endian
− 512M-Byte Total Addressable External Memory Space
Enhanced Direct-Memory-Access (EDMA) Controller (64 Independent Channels)
16 prioritized interrupts
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

5. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Block Diagram
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

6. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Cache
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

7. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Timers
Two 32-bit timers used as timers/event/counters/interrupt sources
Configuring a timer requires four basic steps:
If the timer is not currently in the hold state, place the timer in hold (HLD = 0). Note that after device reset, the timer is already in the hold state
Write the desired value to the timer period register (PRD).
Write the desired value to the timer control register (CTL). Do not change the GO and HLD bits in CTL.
Start the timer by setting the GO and HLD bits in CTL to 1.
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

8. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Interrupts
16 interrupt sources
2 timer interrupts
4 external interrupts
4 McBSP interrupts
4 DMA interrupts
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

9. Interrupt control registers
CSR: control status register
IER: Interrupt enable register
IFR: interrupt flag register
ISR: interrupt set register
ICR: interrupt clear register
ISTP: interrupt service table pointer
IRP: interrupt return pointer
NRP: NMI return pointer
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

10. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
Interrupt Priority
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

11. Interrupt Service Table (single fetch packet)
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

12. Interrupt Service Table (branch to additional code)
ACOE343 - Real-Time Embedded Processor Systems - Frederick University

13. ACOE343 - Real-Time Embedded Processor Systems - Frederick University
DMA
ACOE343 - Real-Time Embedded Processor Systems - Frederick University