Analog Devices ADSP-21369 system manual DPI Interface

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EZ-KIT Lite Hardware Reference

To use the DAI for a different purpose, disable any signal driving the DAI pins with a switch (see “Codec Setup Switch (SW3)” on page 2-10). In addition, the SW3 switch allows flexible routing of the 12.288 MHz audio oscillator’s output signal. By default, this signal is used as the master clock (MCLK) for the AD1835A codec.

All of the DAI signals are available externally via the expansion interface connectors (J3–1), as well as the 0.1” spaced header P4. The pinout of these connectors can be found in “Schematics” on page B-1.

DPI Interface

The pins of the digital peripheral interface (DPI) connect to a second sig- nal routing unit (SRU2). The SRU2 unit, similar to the SRU, is a flexible routing system, providing a large system of signal flows within the proces- sor. In general, the SRU2 allows to route the DPI pins to different internal peripherals in various combinations.

ADSP-21369

T2IN

T2OUT

R2OUT

ADM3202

R2IN

DPI12 (UART CTS)

R1OUT

R1IN

T1IN

T1OUT

DPI11 (UART RTS)

DPI10 (UART RX)

DPI9 (UART TX)

DPI14 (LED5)

LED5

CS/

SPI

DPI13 (LED4)

LED4

SCK

DPI8 (LED3)

LED3

SO

FLASH

DPI7 (LED2)

LED2

SI

DPI6 (LED1)

LED1

DPI5 (SPI_FLASHCS)

DPI4 (SPI_AD1835CS)

CLATCH

DPI3 (SPICLK)

CCLK

AD1835

DPI2 (MISO)

COUT

DPI1 (MOSI)

CIN

DB-9 Conn

Figure 2-3. DPI Connections Block Diagram

ADSP-21369 EZ-KIT Lite Evaluation System Manual

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Contents ADSP-21369 EZ-KIT Lite Evaluation System Manual Disclaimer Limited WarrantyTrademark and Service Mark Notice Copyright InformationRegulatory Compliance Page Contents Using EZ-KIT Lite ADSP-21369 EZ-KIT Lite Evaluation System Manual Vii Bill of Materials Schematics Index Preface Page Preface Page Purpose of This Manual Manual ContentsIntended Audience Technical or Customer Support What’s New in This ManualWhat’s New in This Manual Product Information Supported ProcessorsProcessor Product Information MyAnalog.comProduct Information Title Description Related DocumentsEach documentation file type is described as follows Online Technical DocumentationAccessing Documentation From Windows Accessing Documentation From VisualDSP++Accessing Documentation From Web Processor Manuals Printed ManualsVisualDSP++ Documentation Set Hardware Tools ManualsPreface Data Sheets Notation Conventions Notation ConventionsPreface Xxiv ADSP-21369 EZ-KIT Lite Evaluation System Manual Using EZ-KIT Lite Package Contents Using EZ-KIT Lite Default ConfigurationInstallation and Session Startup Installation and Session StartupUsing EZ-KIT Lite Evaluation License Restrictions Evaluation License RestrictionsExternal Memory Start Address End Address ContentElvis Interface Elvis InterfaceAnalog Audio LEDs and Push Buttons LEDs and Push ButtonsPB1 SW8 FLAG1/~IRQ1 PB2 Background Telemetry Channel Example ProgramsExample Programs Sors/resources/crosscore/emulators/index.html. For more Background Telemetry Channel EZ-KIT Lite Hardware Reference System Architecture System ArchitectureEZ-KIT Lite Hardware Reference External PortDAI Interface ADSP-21369 DPI InterfaceFlag Pins Expansion Interface External PLLJtag Emulation Port Switch SettingsBoot Mode and Clock Ratio Select Switch SW2 Switch SettingsOFF Core Clock Rate Configuration Codec Setup Switch SW3Uart Enable Switch SW5 Electret Microphone Select Switch SW4Push Button Enable Switch SW7 Loop-Back Test Switches SW6 and SW14Elvis Function Generator Configuration Switch SW13 Elvis Oscilloscope Configuration Switch SW1General Purpose LEDs LED1-8 Power LED LED9LED and Push Button Locations Reset LEDs LED10 and LED12Push Buttons SW8-11 USB Monitor LED LED11Jumpers Board Reset Push Button SW12VCO Select Jumper JP1 Jumper Locations 10. VCO Select Jumper JP1 JumpersElvis Voltage Selection Jumper JP3 Elvis Select Jumper JP2Elvis Programmable Flag Jumper JP4 ConnectorsExpansion Interface Connectors J1-J3 ConnectorsConnector Locations Headphone Out Jack P7 Audio In RCA Connector P10Audio Out RCA Connector J5 Power Jack J4Spdif Coax Connectors P8 and P9 RS-232 Connector P1DPI Header P3 USB Connector P5DAI Header P4 Jtag Header P2 Connectors Bill of Materials Description Reference Designator Manufacturer Part Number Bill Of Materials VR5 ADI Switchcraft PJRAN1X1U01 BLK SPST-MOMENTARY SWT013 2A S2ARECT DO-214AA Panasonic ERJ-2GEJ472X DIGI-KEY P1.5KCFCT-ND Yageo ERJ-3RSFR10V Panasonic ECJ-1VC1H101J RED-SMT LED001 LED10,LED12 Panasonic ADSP-21369 EZ-KIT Lite Evaluation System Manual ADSP-21369 EZ-KIT Lite Schematic Devices DSP Memory Analog Audio Audio OUT DAC3 Left Audio in & Headphone OUT Analog DSP IO Current PUSHBUTTONS, LEDS, & Reset Expansion Interface Power Index Index Jtag SPI