Intel E3815 FH8065301567411 Data Sheet

Intel

®

 Atom™ Processor E3800 Product Family

34

Datasheet

Intel

®

 TXE is a security co-processor used to enable security features.

See 

Chapter 17, “Intel

®

 Trusted Execution Engine (TXE)”

 for more details.

Security features include:

•

Isolated execution environment for crypto operations (SKU-enabled)

•

Supports secure boot - with customer programmable keys to secure code

The SoC requires TXE firmware in the PCU SPI flash image to function. Contact your 
Intel

®

 representative for details.

See 

Chapter 12, “Serial IO (SIO) Overview”

 for links to more information about each 

interface.

•

Controller for external devices via SPI, UART, I

2

C or PWM

•

Each port is multiplexed with general purpose I/O for configurations flexibility

•

Supports up to 7 I

2

C, 2 HSUART, 2 PWM, 1 SPI interface

The platform controller unit is a collection of HW blocks, including SMBus, UART,  

debug/boot SPI and Intel legacy block (iLB), that are critical to implement a Windows* 
compatible platform. See 

Chapter 18, “Platform Controller Unit (PCU) Overview”

 for 

links to more information about each interface.

Key PCU features include:

•

SMBus Host controller - supports SMBus 2.0 specification

•

Universal Asynchronous Receiver/Transmitter (UART) with COM1 interface

•

A Serial Peripheral Interface (SPI) for Flash only - stores boot FW and system 
configuration data

•

Intel Legacy Block (iLB) supports legacy PC platform features

— RTC, Interrupts, Timers, General Purpose I/Os (GPIO) and Peripheral interface 

(LPC for TPM) blocks.

This SoC is packaged in a Flip-Chip Ball Grid Array (FCBGA) package with 1170 solder 
balls with 0.593 mm (minimum) ball pitch. The package dimensions are 25mm x 
27mm. See 

Chapter 38, “Ballout and Package Information”

 for more details.