DM385, DM388
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SPRS821D –MARCH 2013–REVISED DECEMBER 2013
8.11 Inter-Integrated Circuit (I2C)
The device includes four inter-integrated circuit (I2C) modules which provide an interface to other devices
compliant with Philips Semiconductors Inter-IC bus (I2C-bus™) specification version 2.1. External
components attached to this 2-wire serial bus can transmit/receive 8-bit data to/from the device through
the I2C module. The I2C port does not support CBUS compatible devices.
The I2C port supports the following features:
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Compatible with Philips I2C Specification Revision 2.1 (January 2000)
Standard and fast modes from 10 - 400 Kbps (no fail-safe I/O buffers)
Noise filter to remove noise 50 ns or less
Seven- and ten-bit device addressing modes
Multimaster transmitter/slave receiver mode
Multimaster receiver/slave transmitter mode
Combined master transmit/receive and receive/transmit modes
Two DMA channels, one interrupt line
Built-in FIFO (32 byte) for buffered read or write.
For more detailed information on the I2C peripheral, see the Inter-Integrated Circuit (I2C) Controller
Module chapter in the device-specific Technical Reference Manual.
8.11.1 I2C Peripheral Register Descriptions
The I2C peripheral registers are described in the device-specific Technical Reference Manual. Each
register is documented as an offset from a base address for the peripheral. The base addresses for all of
the peripherals are in the device memory map (see Section 2.10).
Copyright © 2013, Texas Instruments Incorporated
Peripheral Information and Timings
209
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