AMD XC5VLX110-1FFG676I

24-BIT DIGITAL SIGNAL PROCESSOR

The Motorola DSP56307, a member of the DSP56300 family of programmable digital signal processors (DSPs), supports wireless infrastructure applications with general filtering operations. The on-chip enhanced filter coprocessor (EFCOP) processes filter algorithms in parallel with core operation, thus increasing overall DSP performance and efficiency. Like the other family members, the DSP56307 uses a high-performance, single-clock-cycle-per-instruction engine (code-compatible with Motorolas popular DSP56000 core family), a barrel shifter, 24-bit addressing, an instruction cache, and a direct memory access controller, as in Figure 1. The DSP56307 offers performance at 100 million instructions (MIPS) per second using an internal 100 MHz clock with a 2.5 volt core and independent 3.3 volt input/output power.

FEATURES

High-Performance DSP56300 Core
● 100 million instructions per second (MIPS) with a 100 MHz clock at 2.5 V core and 3.3 V I/O
● Object code compatible with the DSP56000 core
● Highly parallel instruction set
● Data arithmetic logic unit (ALU)
- Fully pipelined 24 x 24-bit parallel multiplier-accumulator
- 56-bit parallel barrel shifter (fast shift and normalization; bit stream generation and parsing)
- Conditional ALU instructions
- 24-bit or 16-bit arithmetic support under software control
● Program control unit (PCU)
- Position independent code (PIC) support
- Addressing modes optimized for DSP applications (including immediate offsets)
- On-chip instruction cache controller
- On-chip memory-expandable hardware stack
- Nested hardware DO loops
- Fast auto-return interrupts
● Direct memory access (DMA)
- Six DMA channels supporting internal and external accesses
- One-, two-, and three- dimensional transfers (including circular buffering)
- End-of-block-transfer interrupts
- Triggering from interrupt lines and all peripherals
● Phase-locked loop (PLL)
- Allows change of low power divide factor (DF) without loss of lock
- Output clock with skew elimination
● Hardware debugging support
- On-Chip Emulation (OnCE) module
- Joint test action group (JTAG) test access port (TAP)
- Address trace mode reflects internal Program RAM accesses at the external port