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Preface
SPRUEN0D–March 2011
Read This First
About This Manual
This document describes the inter-integrated circuit (I2C) peripheral in the TMS320C642x Digital Signal
Processor (DSP). The I2C peripheral provides an interface between the DSP and other devices that are
compliant with Philips Semiconductors Inter-IC bus (I2C-bus) specification version 2.1 and connected by
way of an I2C-bus. The scope of this document assumes that you are familiar with the I2C-bus
specification.
Notational Conventions
This document uses the following conventions.
• Hexadecimal numbers are shown with the suffix h. For example, the following number is 40
hexadecimal (decimal 64): 40h.
• Registers in this document are shown in figures and described in tables.
– Each register figure shows a rectangle divided into fields that represent the fields of the register.
Each field is labeled with its bit name, its beginning and ending bit numbers above, and its
read/write properties below. A legend explains the notation used for the properties.
– Reserved bits in a register figure designate a bit that is used for future device expansion.
Related Documentation From Texas Instruments
The following documents describe the TMS320C642x Digital Signal Processor (DSP). Copies of these
documents are available on the Internet at www.ti.com. Tip: Enter the literature number in the search box
provided at www.ti.com.
The current documentation that describes the C642x DSP, related peripherals, and other technical
collateral, is available in the C6000 DSP product folder at: www.ti.com/c6000.
SPRUEM3 — TMS320C642x DSP Peripherals Overview Reference Guide. Provides an overview and
briefly describes the peripherals available on the TMS320C642x Digital Signal Processor (DSP).
SPRAA84 — TMS320C64x to TMS320C64x+ CPU Migration Guide. Describes migrating from the
Texas Instruments TMS320C64x digital signal processor (DSP) to the TMS320C64x+ DSP. The
objective of this document is to indicate differences between the two cores. Functionality in the
devices that is identical is not included.
SPRU732 — TMS320C64x/C64x+ DSP CPU and Instruction Set Reference Guide. Describes the CPU
architecture, pipeline, instruction set, and interrupts for the TMS320C64x and TMS320C64x+ digital
signal processors (DSPs) of the TMS320C6000 DSP family. The C64x/C64x+ DSP generation
comprises fixed-point devices in the C6000 DSP platform. The C64x+ DSP is an enhancement of
the C64x DSP with added functionality and an expanded instruction set.
SPRU871 — TMS320C64x+ DSP Megamodule Reference Guide. Describes the TMS320C64x+ digital
signal processor (DSP) megamodule. Included is a discussion on the internal direct memory access
(IDMA) controller, the interrupt controller, the power-down controller, memory protection, bandwidth
management, and the memory and cache.
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Preface SPRUEN0D–March 2011
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