Owner's manual

KTD-S0003-C Page 40 JIDA32 Interface

pITX-SP Software Guide

Bus Number Technology Type Device Count Comment

0 I2C (primary) JIDA 1

1 SMBus Generic 2

2 I2C JILI 1 Not supported on Basic variant

11.3.1 Bus Number 0 (JIDA)

This bus allows access to the JIDA EEPROM in which KONTRON specific manufacturing parameters are

stored. A damage of these parameters leads to a loss of warranty. Due to this a write cycle may only be per-

formed above a defined address.

Device Address Size Read Access Write Access

JIDA EEPROM A0h 512 Bytes Yes

Yes, between

28h to 1C8h

11.3.2 Bus Number 1 (Generic)

Through this bus several devices can be handled.

Note:

The accelerometer is not available before hardware revision 3.0 (only Plus variant).

Device Address Size Read Access Write Access

Accelerometer 6Eh 32 Bytes Yes Yes

Temp. sensor 98h 256 Bytes Yes Yes

SPD EEPROM A0h 256 Bytes Yes No, forbidden

11.3.3 BusNumber 2 (JILI)

The JILI EEPROM refers to the LCD/LVDS interface. It contains the panel specific timing parameters (e.g. a

DisplayID

record).

Device Address Size Read Access Write Access

JILI EEPROM A0h 512 Bytes Yes Yes

11.4 CPU Performance Part

This part implements power management functions. The CPU frequency and the CPU throttling can be con-

trolled.

Function Supported

CPU throttling Yes

CPU frequency No