TMS320C1x Features

The TMS320C1x generation of digital signal processors provides one of the lowest cost DSP solutions on the market. With a modified Harvard architecture and special DSP instruction set, 'C1x DSPs are used in applications requiring low cost, greater speeds and flexibility, in the automotive, industrial, communications and consumer markets.

In addition, the TMS320C1x family offers a rich selection of RAM, ROM, and OTP (one-time programmable) PROM versions, each with specific differentiating features.

'C1x Key specifications:

• On-chip RAM, ROM or OTP PROM for broad flexibility
• One of the lowest cost DSPs on the market
• Choice of five versions ('C10, 'C14, 'C15, 'C16, 'C17) for optimizing system costs
• Integration capability through cDSP
• Single-cycle multiply or ALU operations provide real-time computation for DSP and control algorithms
• Separate I/O select signal provides eight I/O ports using the 16-bit data bus
• 16-bit barrel shifter scales data in parallel with the ALU operations

'C1x Key applications:

• Anti-lock braking
• Musical instruments
• Energy metering
• Servo and motor control
• Digital tapeless answering machines

Features by Device

• TMS320C10
• TMS320C14
• TMS320C15
• TMS320C16
• TMS320C17

TMS320C1x Memory and Buses

The modified Harvard architecture of the TMS320C1x provides simultaneous access to both the data and program memory. This allows both a program fetch and data fetch to occur in parallel, so arithmetic operations execute in a single cycle. The bridge between program and data buses allows you to store coefficients in program memory (ROM) and transfer these coefficients into data RAM during system start-up.

On-chip program and data memory provide internal information to the CPU; external RAM or ROM can be interfaced to the 'C1x for those applications requiring off-chip program memory space.

The 'C1x offers a variety of on-chip memory, including OTP and ROM devices with up to 8K 16-bit words of on-chip memory. Most devices have 4K 16-bit words of external program address available. For designers who need additional external memory, the TMS320C16 offers 64K 16-bit words of external address reach.

Features of the 'C1x memory and buses are:

• Single-cycle reads and writes
• Modified Harvard architecture
  • Separate program and data buses
  • "Bridge" between program and data space
• Up to 8K words of on-chip program ROM
• 4K words of one-time user-programmable memory (OTP) available
• Up to 64K words of external program memory