DSP56721 datasheet(2/54 Pages) NXP

2 / 54 page

Symphony™ DSP56720/DSP56721 Multi-Core Audio Processors, Rev. 5

Freescale Semiconductor

Table of Contents

Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.1

Pinout for DSP56720 144-Pin Plastic LQFP Package . .5

1.2

Pinout for DSP56721 80-Pin Plastic LQFP Package . . .6

1.3

Pinout for DSP56721 144-Pin Plastic LQFP Package . .7

1.4

Pin Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.1

Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . .8

2.2

Thermal Characteristics. . . . . . . . . . . . . . . . . . . .9

2.3

Power Requirements . . . . . . . . . . . . . . . . . . . . .10

2.5

DC Electrical Characteristics . . . . . . . . . . . . . . .12

2.6

AC Electrical Characteristics . . . . . . . . . . . . . . .13

2.7

Internal Clocks . . . . . . . . . . . . . . . . . . . . . . . . . .13

2.8

External Clock Operation. . . . . . . . . . . . . . . . . .13

2.9

Reset, Stop, Mode Select, and Interrupt Timing 15

2.10

Serial Host Interface (SHI) SPI Protocol Timing 18

2.11

Serial Host Interface (SHI) I2C Protocol Timing.24

2.12

Programming the SHI I2C Serial Clock . . . . . . 26

2.13

Enhanced Serial Audio Interface (ESAI) Timing 27

2.14

Timer Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.15

GPIO Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.16

JTAG Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.17

Watchdog Timer Timing . . . . . . . . . . . . . . . . . . 35

2.18

Host Data Interface (HDI24) Timing . . . . . . . . . 35

2.19

S/PDIF Timing . . . . . . . . . . . . . . . . . . . . . . . . . 42

2.20

EMC Timing (DSP56720 Only) . . . . . . . . . . . . 43

Functional Description and Application Information . . . . . . . 47

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.1

80-Pin Package Outline Drawing . . . . . . . . . . . . . . . . . 49

5.2

144-Pin Package Outline Drawing. . . . . . . . . . . . . . . . 51

Product Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

DSP56721 Datasheet(PDF) 2 Page - NXP Semiconductors

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