TMS320C6421 datasheet(5/227 Pages) TI

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TMS320C6421

Fixed-Point Digital Signal Processor

SPRS346B – JANUARY 2007 – REVISED APRIL 2007

5.3

Electrical Characteristics Over Recommended

TMS320C6421 Fixed-Point Digital Signal

Ranges of Supply Voltage and Operating

Processor

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

Temperature (Unless Otherwise Noted)

........... 116

1.1

Features

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

Peripheral Information and Electrical

1.2

Description

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

Specifications

......................................... 117

1.3

Functional Block Diagram

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

6.1

Parameter Information

............................. 117

Revision History

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

6.2

Recommended Clock and Control Signal Transition

Device Overview

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

Behavior

............................................ 118

2.1

Device Characteristics

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

6.3

Power Supplies

.................................... 118

2.2

C64x+ Megamodule

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

6.4

Enhanced Direct Memory Access (EDMA3)

Controller

........................................... 126

2.3

Memory Map Summary

............................. 18

6.5

Reset

............................................... 139

2.4

Pin Assignments

.................................... 20

6.6

External Clock Input From MXI/CLKIN Pin

........ 148

2.5

Terminal Functions

.................................. 29

6.7

Clock PLLs

......................................... 150

2.6

Device Support

...................................... 61

6.8

Interrupts

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

2.7

Device and Development-Support Tool

Nomenclature

....................................... 61

6.9

External Memory Interface (EMIF)

................. 158

2.8

Documentation Support

............................. 63

6.10

Universal Asynchronous Receiver/Transmitter

(UART)

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

Device Configurations

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

6.11

Inter-Integrated Circuit (I2C)

....................... 169

3.1

System Module Registers

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

6.12

Host-Port Interface (HPI) Peripheral

............... 173

3.2

Power Considerations

............................... 65

6.13

Multichannel Buffered Serial Port (McBSP)

........ 180

3.3

Clock Considerations

................................ 67

6.14

Multichannel Audio Serial Port (McASP0)

3.4

Boot Sequence

...................................... 69

Peripheral

.......................................... 188

3.5

Configurations At Reset

............................. 78

6.15

Ethernet Media Access Controller (EMAC)

........ 196

3.6

Configurations After Reset

.......................... 80

6.16

Management Data Input/Output (MDIO)

.......... 205

3.7

Multiplexed Pin Configurations

...................... 84

6.17

Timers

.............................................. 207

3.8

Device Initialization Sequence After Reset

........ 108

6.18

Pulse Width Modulator (PWM)

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

3.9

Debugging Considerations

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

6.19

VLYNQ

............................................. 212

System Interconnect

................................. 112

6.20

General-Purpose Input/Output (GPIO)

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

4.1

System Interconnect Block Diagram

............... 112

6.21

IEEE 1149.1 JTAG

................................. 220

Device Operating Conditions

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

Mechanical Data

....................................... 222

5.1

Absolute Maximum Ratings Over Operating

7.1

Thermal Data for ZWT

............................. 222

Temperature Range (Unless Otherwise Noted)

... 114

7.1.1

Thermal Data for ZDU

............................. 223

5.2

Recommended Operating Conditions

............. 115

7.1.2

Packaging Information

............................. 223

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