TMS320C6421 datasheet(5/222 Pages) TI1

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Contents

TMS320C6421

Fixed-Point Digital Signal Processor

www.ti.com

SPRS346D – JANUARY 2007 – REVISED JUNE 2008

Ranges of Supply Voltage and Operating

TMS320C6421 Fixed-Point Digital Signal

Temperature (Unless Otherwise Noted)

........... 111

Processor

.................................................. 1

Peripheral Information and Electrical

1.1

Features

.............................................. 1

Specifications

......................................... 113

1.2

Description

............................................ 2

6.1

Parameter Information

............................. 113

1.3

Functional Block Diagram

............................ 4

6.2

Recommended Clock and Control Signal Transition

Revision History

............................................... 6

Behavior

............................................ 114

Device Overview

......................................... 7

6.3

Power Supplies

.................................... 114

2.1

Device Characteristics

................................ 7

6.4

Enhanced Direct Memory Access (EDMA3)

2.2

C64x+ Megamodule

.................................. 8

Controller

........................................... 122

2.3

Memory Map Summary

............................. 14

6.5

Reset

............................................... 135

2.4

Pin Assignments

.................................... 16

6.6

External Clock Input From MXI/CLKIN Pin

........ 144

2.5

Terminal Functions

.................................. 24

6.7

Clock PLLs

......................................... 146

2.6

Device Support

...................................... 56

6.8

Interrupts

........................................... 152

2.7

Device and Development-Support Tool

6.9

External Memory Interface (EMIF)

................. 155

Nomenclature

....................................... 56

6.10

Universal Asynchronous Receiver/Transmitter

2.8

Documentation Support

............................. 58

(UART)

............................................. 163

Device Configurations

................................. 59

6.11

Inter-Integrated Circuit (I2C)

....................... 166

3.1

System Module Registers

........................... 59

6.12

Host-Port Interface (HPI) Peripheral

............... 170

3.2

Power Considerations

............................... 60

6.13

Multichannel Buffered Serial Port (McBSP)

........ 175

3.3

Clock Considerations

................................ 62

6.14

Multichannel Audio Serial Port (McASP0)

Peripheral

.......................................... 183

3.4

Boot Sequence

...................................... 64

6.15

Ethernet Media Access Controller (EMAC)

........ 191

3.5

Configurations At Reset

............................. 73

6.16

Management Data Input/Output (MDIO)

.......... 200

3.6

Configurations After Reset

.......................... 75

6.17

Timers

.............................................. 202

3.7

Multiplexed Pin Configurations

...................... 79

6.18

Pulse Width Modulator (PWM)

..................... 204

3.8

Device Initialization Sequence After Reset

........ 103

6.19

VLYNQ

............................................. 206

3.9

Debugging Considerations

......................... 105

6.20

General-Purpose Input/Output (GPIO)

............. 210

System Interconnect

................................. 107

6.21

IEEE 1149.1 JTAG

................................. 214

4.1

System Interconnect Block Diagram

............... 107

Mechanical Data

....................................... 216

Device Operating Conditions

....................... 109

7.1

Thermal Data for ZWT

............................. 216

5.1

Absolute Maximum Ratings Over Operating

Temperature Range (Unless Otherwise Noted)

... 109

7.1.1

Thermal Data for ZDU

............................. 217

5.2

Recommended Operating Conditions

............. 110

7.1.2

Packaging Information

............................. 217

5.3

Electrical Characteristics Over Recommended

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