Ktt20/pitx software guide – Kontron KTT20-pITX User Manual
Page 42
KTD-S0045-D
Page 38
Linux® BSP
KTT20/pITX Software Guide
For the I
2
C
TM
part some restrictions are valid:
S
Do not access board devices (e.g. temperature sensor - this device has an own interface).
Especially this part should be used for external components on the digital I/O (GPIO) or mini
PCI Express
®
connector.
S
Some datasheets present the device address as a shifted value (e.g. EEPROM address =
0xA0). Use instead the unshifted value (e.g. real EEPROM address = 0x50).
S
Bus 1 allows access to the DVI
®
DDC lines. Do not overwrite the EDID EEPROM.
I
2
C
TM
bus assignment:
Bus 0 Ö mini PCI Express
®
connector Bus 1 Ö DVI
®
DDC lines
Bus 2 Ö Digital I/O connector Bus 3 Ö Reserved
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