DSP56721 Freescale Semiconductor, Inc, DSP56721 Datasheet - Page 2

• Manufacturer Part Number: DSP56721
• Description: Dsp56721 Multi-core Audio Processor
• Manufacturer: Freescale Semiconductor, Inc

1
2
2
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1
1.2
1.3
1.4
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.1
2.2
Pinout for DSP56720 144-Pin Plastic LQFP Package . .4
Pinout for DSP56721 80-Pin Plastic LQFP Package . . .6
Pinout for DSP56721 144-Pin Plastic LQFP Package . .7
Pin Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Chip-Level Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.1.1 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . .8
2.1.2 Thermal Characteristics. . . . . . . . . . . . . . . . . . .10
2.1.3 Power Requirements . . . . . . . . . . . . . . . . . . . . .10
2.1.4 DC Electrical Characteristics . . . . . . . . . . . . . . .11
2.1.5 AC Electrical Characteristics . . . . . . . . . . . . . . .12
2.1.6 Internal Clocks . . . . . . . . . . . . . . . . . . . . . . . . .12
2.1.7 External Clock Operation. . . . . . . . . . . . . . . . . .13
2.1.8 Reset, Stop, Mode Select, and Interrupt Timing 14
Module-Level Specifications . . . . . . . . . . . . . . . . . . . . .17
2.2.1 Serial Host Interface (SHI) SPI Protocol Timing 18
2.2.2 Serial Host Interface (SHI) I
Symphony
TM
DSP56720 / DSP56721 Multi-Core Audio Processors, Rev. 3
2
C Protocol Timing.24
Table of Contents
3
4
5
6
7
8
Functional Description and Application Information . . . . . . . 48
Hardware Design Considerations . . . . . . . . . . . . . . . . . . . . . 48
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.1
6.2
Product Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2.2.3 Programming the SHI I
2.2.4 Enhanced Serial Audio Interface (ESAI) Timing 27
2.2.5 Timer Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.2.6 GPIO Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.2.7 JTAG Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.2.8 Watchdog Timer Timing . . . . . . . . . . . . . . . . . . 35
2.2.9 Host Data Interface (HDI24) Timing . . . . . . . . . 35
2.2.10 S/PDIF Timing . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.2.11 EMC Timing (DSP56720 only) . . . . . . . . . . . . . 43
80-Pin Package Outline Drawing . . . . . . . . . . . . . . . . . 48
144-Pin Package Outline Drawing . . . . . . . . . . . . . . . . 51
Freescale Semiconductor
2
C Serial Clock . . . . . . 26