■ DESCRIPTION

The MB86330 is a 16-bit fixed-point DSP (Digital Signal Processor) that is based on Fujitsu-specific Dual-MAC architecture, and can implement product addition operations and double transfer at a high rate and under low power consumption.

The DSP supports a set of instructions optimum for digital signal processing in communications applications such as handy phones.

The MB86330 consists of a core section and a peripheral section. For detailed specifications of the core section, see MB86330DSP Core Section Specifications.

■ FEATURES

• Fixed-point operations

Multiplication: 16 bits × 16 bits → 31 bits

Addition: 40 bits + 40 bits → 40 bits

Product addition: 40 bits ±16 bits × 16 bits → 40 bits

Maximum operation speed: 100 MIPS at 3.3 V

• Memory configuration

Data RAM: Two sectors that can be accessed concurrently

An external RAM (ERAM) is supported.

Memory mapped I/O system characterized by allocation of I/O devices in the memory space

Instruction RAM: 48 Kwords × 16 bits

Table RAM: 16 Kwords × 16 bits

• Addressing

Two independent address units

Eight general-purpose registers

Addressing function that can update a register

Circular addressing

Two address update registers

• Supply voltage: 3.3 V (single type of supply voltage)

• Ceramic package: PGA-256