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TMS320C6421 Datasheet(PDF) 169 Page - Texas Instruments

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Part # TMS320C6421
Description  Fixed-Point Digital Signal Processor
PDF  227 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320C6421 Datasheet(HTML) 169 Page - Texas Instruments

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6.11 Inter-Integrated Circuit (I2C)
Clock
Prescale
ICPSC
PeripheralClock
(DSP/18)
ICCLKH
Generator
BitClock
ICCLKL
Noise
Filter
SCL
ICXSR
ICDXR
Transmit
Transmit
Shift
Transmit
Buffer
ICDRR
Shift
ICRSR
Receive
Buffer
Receive
Receive
Filter
SDA
I2CData
Noise
ICOAR
ICSAR
Slave
Address
Control
Address
Own
ICMDR
ICCNT
Mode
Data
Count
Vector
Interrupt
Interrupt
Status
ICIVR
ICSTR
Mask/Status
Interrupt
ICIMR
Interrupt/DMA
I2CModule
I2CClock
Shadingdenotescontrol/statusregisters.
ICEMDR
Extended
Mode
TMS320C6421
Fixed-Point Digital Signal Processor
SPRS346B – JANUARY 2007 – REVISED APRIL 2007
The inter-integrated circuit (I2C) module provides an interface between C6421 and 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 up to 8-bit data to/from the DSP
through the I2C module. The I2C port does not support CBUS compatible devices.
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
• Seven- and Ten-Bit Device Addressing Modes
• Master (Transmit/Receive) and Slave (Transmit/Receive) Functionality
• Events: DMA, Interrupt, or Polling
• Slew-Rate Limited Open-Drain Output Buffers
Figure 6-20. I2C Module Block Diagram
For more detailed information on the I2C peripheral, see the TMS320C642x DSP Peripherals Overview
Reference Guide (literature number SPRUEM3).
Submit Documentation Feedback
Peripheral Information and Electrical Specifications
169



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