Freescale Semiconductor Document Number: DSP56720EC Rev. 5, 02/2009 Data Sheet: Technical Data DSP56720/DSP56721 DSP56720 Symphony 144-Pin LQFP 20 mm 20 mm DSP56721 DSP56720/DSP56721 0.5 mm pitch 80-Pin LQFP 14 mm 14 mm Multi-Core Audio Processors 0.65 mm pitch 144-Pin LQFP 20 mm 20 mm The Symphony DSP56720/DSP56721 Multi-Core Audio 0.5 mm pitch Processors are part of the DSP5672x family of programmable CMOS DSPs, designed using multiple DSP56300 24-bit Communication (ICC), an External Memory Controller cores. (EMC) to support SDRAM, and a Sony/Philips Digital Interface (S/PDIF). The DSP56720/DSP56721 devices are intended for automotive, consumer, and professional audio applications The DSP56720/DSP56721 offer 200 million instructions per that require high performance for audio processing. In second (MIPs) per core using an internal 200 MHz clock. addition, the DSP56720 is ideally suited for applications that The DSP56720/DSP56721 are high density CMOS devices need the capability to expand memory off-chip or to interface with 3.3 V inputs and outputs. to external parallel peripherals. Potential applications include A/V receivers, HD-DVD and Blu-Ray players, car The DSP56720 device is slightly different than the DSP56721 audio/amplifiers, and professional recording equipment. devicethe DSP56720 includes an external memory interface while the DSP56721 device does not. The The DSP56720/DSP56721 devices excel at audio processing DSP56720 block diagram is shown in Figure 1 the for automotive and consumer audio applications requiring DSP56721 block diagram is shown in Figure 2. high MIPs. Higher MIPs and memory requirements are driven by the new high-definition audio standards (Dolby Digital+, Dolby TrueHD, DTS-HD, for example) and the desire to process multiple audio streams. In addition, DSP56720/DSP56721 devices are optimal for the professional audio market requiring audio recording, signal processing, and digital audio synthesis. The DSP56720/DSP56721 processors provide a wealth of on-chip audio processing functions, via a plug and play software architecture system that supports audio decoding algorithms, various equalization algorithms, compression, signal generator, tone control, fade/balance, level meter/spectrum analyzer, among others. The DSP56720/DSP56721 devices also support various matrix decoders and sound field processing algorithms. With two DSP56300 cores, a single DSP56720 or DSP56721 device can replace dual-DSP designs, saving costs while meeting high MIPs requirements. Legacy peripherals from the previous DSP5636x/7x families are included, as well as a variety of new modules. Included among the new modules are an Asynchronous Sample Rate Converter (ASRC), Inter-Core Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. Freescale Semiconductor, Inc., 2009. All rights reserved.Table of Contents 2 1 Pin Assignments 4 2.12 Programming the SHI I C Serial Clock 26 1.1 Pinout for DSP56720 144-Pin Plastic LQFP Package 5 2.13 Enhanced Serial Audio Interface (ESAI) Timing27 1.2 Pinout for DSP56721 80-Pin Plastic LQFP Package .6 2.14 Timer Timing 32 1.3 Pinout for DSP56721 144-Pin Plastic LQFP Package 7 2.15 GPIO Timing 32 1.4 Pin Multiplexing 7 2.16 JTAG Timing . 33 2 Electrical Characteristics .8 2.17 Watchdog Timer Timing 35 2.1 Maximum Ratings 8 2.18 Host Data Interface (HDI24) Timing . 35 2.2 Thermal Characteristics 9 2.19 S/PDIF Timing . 42 2.3 Power Requirements .10 2.20 EMC Timing (DSP56720 Only) 43 2.5 DC Electrical Characteristics .12 3 Functional Description and Application Information . 47 2.6 AC Electrical Characteristics .13 4 Ordering Information . 48 2.7 Internal Clocks 13 5 Package Information . 48 2.8 External Clock Operation 13 5.1 80-Pin Package Outline Drawing . 49 2.9 Reset, Stop, Mode Select, and Interrupt Timing 15 5.2 144-Pin Package Outline Drawing 51 2.10 Serial Host Interface (SHI) SPI Protocol Timing 18 6 Product Documentation . 53 2 2.11 Serial Host Interface (SHI) I C Protocol Timing.24 7 Revision History 53 Symphony DSP56720/DSP56721 Multi-Core Audio Processors, Rev. 5 2 Freescale Semiconductor