This document briefly descibes the DSP56367 24-bit digital signal processor (DSP). The DSP56367 is a member of the DSP56300 family of programmable CMOS DSPs. The DSP56367 is targeted to applications that require digital audio compression/decompression, sound field processing, acoustic equalization and other digital audio algorithms.
The DSP56367 is a 24‑bit audio digital signal processor designed for digital audio compression, sound field processing, acoustic equalization and other audio algorithms. It delivers up to 150 MIPS at 150 MHz with a 1.8 V core supply and 100 MIPS at 100 MHz with a 1.5 V supply.
On‑chip memory includes Y‑Data RAM/ROM, X‑Data RAM/ROM, program ROM, program RAM and bootstrap ROM, while off‑chip expansion supports up to two 16 M × 24‑bit data words and 16 M × 24‑bit program words. Peripheral modules such as ESAI, SHI, HDIO8, DAX and a six‑channel DMA controller provide flexible audio and host interfaces.
| Maximum MIPS (150 MHz) | 150 MIPS @ 150 MHz, 1.8 V |
|---|---|
| Maximum MIPS (100 MHz) | 100 MIPS @ 100 MHz, 1.5 V |
| Y‑Data RAM | 7 K × 24‑bit |
| Y‑Data ROM | 8 K × 24‑bit |
| X‑Data RAM | 13 K × 24‑bit |
| X‑Data ROM | 32 K × 24‑bit |
| Program ROM | 40 K × 24‑bit |
| Program RAM | 3 K × 24‑bit |
| Bootstrap ROM | 192 × 24‑bit |
| Serial Audio Interface (ESAI) | Up to 4 receivers, up to 6 transmitters |
| Off‑chip Data Memory Expansion | Up to 2 × 16 M × 24‑bit words |
| Off‑chip Program Memory Expansion | Up to 16 M × 24‑bit words |
| Power Supply | Operates from 1.8 V; some inputs tolerate 3.3 V |
| DMA Controller | Six‑channel DMA controller |
The DSP56367 can execute up to 150 MIPS at 150 MHz with a 1.8 V core supply, and up to 100 MIPS at 100 MHz with a 1.5 V core supply.
It includes 7 K×24‑bit Y‑Data RAM, 8 K×24‑bit Y‑Data ROM, 13 K×24‑bit X‑Data RAM, 32 K×24‑bit X‑Data ROM, 40 K×24‑bit Program ROM, 3 K×24‑bit Program RAM, and a 192×24‑bit Bootstrap ROM.
The device offers a Serial Audio Interface (ESAI), Serial Host Interface (SHI), byte‑wide parallel Host Interface (HDIO8), Digital Audio Transmitter (DAX), a six‑channel DMA controller, and configurable GPIO pins.
The DSP56367 operates from a 1.8 V supply, though some input pins can tolerate 3.3 V.