TMS320C6671 Datasheet, PDF (217/241 Pages) Texas Instruments – Fixed and Floating-Point Digital Signal Processor

TMS320C6671
Fixed and Floating-Point Digital Signal Processor
www.ti.com
SPRS756—April 2011
7.11.2 DDR3 Memory Controller Electrical Data/Timing
The KeyStone DSP DDR3 Implementation Guidelines (literature number SPRABI1)specifies a complete DDR3
interface solution as well as a list of compatible DDR3 devices. The DDR3 electrical requirements are fully specified
in the DDR3 Jedec Specification JESD79-3C. TI has performed the simulation and system characterization to ensure
all DDR3 interface timings in this solution are met; therefore, no electrical data/timing information is supplied here
for this interface.
Note—TI supports only designs that follow the board design guidelines outlined in the application report.
7.12 I²C Peripheral
The inter-integrated circuit (I²C) module provides an interface between DSP and other devices compliant with
Philips Semiconductors Inter-IC bus (I²C bus) specification version 2.1 and connected by way of an I²C bus.
External components attached to this 2-wire serial bus can transmit/receive up to 8-bit data to/from the DSP
through the I²C module.
7.12.1 I²C Device-Specific Information
The TMS320C6671 device includes an I²C peripheral module. NOTE: when using the I²C module, ensure there are
external pullup resistors on the SDA and SCL pins.
The I²C modules on the C6671 may be used by the DSP to control local peripheral ICs (DACs, ADCs, etc.) or may
be used to communicate with other controllers in a system or to implement a user interface.
The I²C port supports:
• Compatible with Philips I²C specification revision 2.1 (January 2000)
• Fast mode up to 400 Kbps (no fail-safe I/O buffers)
• Noise filter to remove noise 50 ns or less
• 7-bit and 10-bit device addressing modes
• Multi-master (transmit/receive) and slave (transmit/receive) functionality
• Events: DMA, interrupt, or polling
• Slew-rate limited open-drain output buffers
Copyright 2011 Texas Instruments Incorporated
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