Intel N2820 FH8065301616603 Data Sheet

698

Datasheet

The LPE Audio Subsystem consists of the following:

•

Integrated, power-efficient 32-bit architecture core with 24-bit audio processing 
instructions

•

Core processing speeds up to 343 MHz

•

Closely Coupled Memories (CCMs)

— 80KB Instruction RAM

— 160KB Data RAM

— 48KB Instruction Cache

— 96KB Data Cache

•

Very low-power consumption coupled with high-fidelity 24-bit audio

•

Dual-issue, static, super-scalar VLIW processing engine

•

Mode-less switching between 16-, 24-, and 64-bit dual-issue instructions

•

Dual MACs which can operate with 32 x 16-bit and/or 24 x 24-bit operands

•

Inter-Process Communication (IPC) mechanism to communicate with the processor 
Core including 4KB mailbox memory

•

Flexible audio interfaces include three SSPs with I

2

S port functionality for 

I-directional audio transfers

— I

2

S mode supports PCM payloads 

— Frame counters for all I

2

S ports

•

PWM (Pulse Width Modulation) function 

•

High Performance DMA

— DMA IP to support multiple outstanding transactions

— Interleaved scatter-gather support for Audio DMA transfers

•

Clock switching logic including new frequency increments

•

External timer function with an always running clock.

I/O

Clock signal for I

2

S

I/O

Frame select signal for I

2

S

I/O

RX data for I

2

S

I/O

TX data for I

2

S

†

All LPE signals are multiplexed and may be used by other functions.