4 fast i2c, Fast i2c – Kontron ETX-OH User Manual

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ETX-OH / Features and Interfaces

4.4

Fast I2C

The ETX®-OH supports a CPLD implemented LPC to I2C bridge using the WISHBONE I2C Master Core provided from
opencores.org. The I2C Interface supports transfer rates up to 40kB/s and can be configured in Setup

Specification for external I2C:

» Speed up to 400kHz

» Compatible to Philips I2C bus standard

» Multi-Master capable

» Clock stretching support and wait state generation

» Interrupt or bit-polling driven byte-by-byte data-transfers

» Arbitration lost interrupt with automatic transfer cancellation

» Start/Stop signal generation/detection

» Bus busy detection

» 7bit and 10bit addressing