SPEAR1310 datasheet(39/57 Pages) STMICROELECTRONICS

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SPEAr1310

I2C controller

Doc ID 17528 Rev 4

39/57

I2C controller

The I2C controller acts as an APB slave interface to the two-wire serial I2C bus.

25.1

Main features

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Compliance to the I2C-bus specification from Philips

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Operates in three different modes:

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Standard-speed mode (data rates up to 100 Kb/s)

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Fast-speed mode (data rates up to 400 Kb/s)

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High-speed mode (data rates up to 3.4 Mb/s)

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Provides clock synchronization

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Supports either master or slave I2C operation mode.

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Supports multimaster operation mode (bus arbitration)

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Provides 7-bit or 10-bit addressing

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Supports 7-bit or 10-bit combined format transfers

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Provides slave bulk transfer mode

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Ignores CBUS addresses (an older ancestor of I2C that used to share the I2C bus)

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Transmits and receives buffers

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Provides interrupt or polled-mode operation

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Handles bit and byte waiting at all bus speeds

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Provides digital filter for the received SDA and SCL lines

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Handles component parameters for a configurable software driver support

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Provides a DMA handshaking interface compatible with the DW_ahb_dmac

handshaking interface

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Supports for APB data bus widths of 8, 16 and 32 bits

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