Intel® 500 Series Chipset Family On-Package PCH Datasheet Volume 1

Datasheet

ID 631119
Date 13/07/2021 00:00:00
Public Content
Document Table of Contents

Intel® Serial IO Generic SPI (GSPI) Controllers

The PCH implements three generic SPI interfaces to support devices that uses serial protocol for transferring data.

Each interface consists of a clock (CLK), two chip selects (CS) and two data lines (MOSI and MISO).

The GSPI interfaces support the following features:

  • Support bit rates up to 20 Mbits/s
  • Support data size from 4 to 32 bits in length and FIFO depths of 64 entries
  • Support DMA with 128-byte FIFO per channel (up to 64-byte burst)
  • Full duplex synchronous serial interface
  • Support the Motorola’s SPI protocol
  • Operate in master mode only
Note:Slave mode is not supported.

Acronyms

Acronyms

Description

GSPI

Generic Serial Peripheral Interface

LTR

Latency Tolerance Reporting