AT73C240-EK1 Evaluation Kit .................................................................................................................... User Guide 6482A–PMAAC–11-Jun-09 1-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Section 1 Introduction .................................................................................................................1-1 1.1 Scope ................................................................................................................................. 1-1 1.2 AT73C240-EK1 Features................................................................................................... 1-2 1.3 Deliverables ....................................................................................................................... 1-2 Section 2 Getting Started............................................................................................................2-1 2.1 Electrostatic Warning ......................................................................................................... 2-1 2.2 Requirements..................................................................................................................... 2-1 2.3 PC System Requirements.................................................................................................. 2-1 2.4 Instructions......................................................................................................................... 2-2 2.4.1 To start the AT73C240-EK1 board (before using the AT73C240-EK1 software) 2-2 2.4.2 To turn off the AT73C240-EK1 evaluation board................................................. 2-2 2.5 Block Diagram.................................................................................................................... 2-3 2.6 Typical Connection Application .......................................................................................... 2-3 2.7 Power Supply ..................................................................................................................... 2-4 2.8 2.9 2.7.1 AC/DC Transformer or External Power Supply ................................................... 2-4 2.7.2 Supply With a Power Supply on Audio Power Amplifier ...................................... 2-6 2.7.3 On Board Supply Voltage .................................................................................... 2-6 Communication Interfaces ................................................................................................. 2-7 2.8.1 Serial Interfaces Header ...................................................................................... 2-7 2.8.2 SPI Setup............................................................................................................. 2-8 2.8.3 TWI Setup ............................................................................................................ 2-9 2.8.4 I²S Extension Header......................................................................................... 2-10 Audio Interfaces ............................................................................................................... 2-11 2.9.1 Headset 32 Ohms Output .................................................................................. 2-11 2.9.2 Power Amplifier Output (PA).............................................................................. 2-11 2.10 General Configuration ...................................................................................................... 2-13 2.10.1 Configuration Pads ............................................................................................ 2-13 Section 3 Parallel-to-serial Card .................................................................................................3-1 3.1 Parallel-to-serial Card Features ......................................................................................... 3-1 3.2 Parallel-to-serial Card Components Placement ................................................................. 3-2 3.3 Electrostatic Warning ......................................................................................................... 3-2 3.4 Requirements..................................................................................................................... 3-2 3.5 Instructions......................................................................................................................... 3-3 3.6 3.5.1 To start the Parallel-to-Serial card (before using any software) .......................... 3-3 3.5.2 To turn off the Parallel-to-Serial card evaluation board ....................................... 3-3 Block Diagram.................................................................................................................... 3-4 AT73C240-EK1 Evaluation Kit User Guide 1-1 6482A–PMAAC–11-Jun-09 3.7 3.8 Power Supply ..................................................................................................................... 3-4 3.7.1 AC/DC Transformer ............................................................................................. 3-5 3.7.2 Vpad Supply Option ............................................................................................. 3-7 3.7.3 Adjustable Output Voltage ................................................................................... 3-8 Communication Interfaces ................................................................................................. 3-9 3.8.1 Serial Interfaces Header ...................................................................................... 3-9 3.8.2 12.288 MHz Clock ............................................................................................. 3-10 3.8.3 On Board Configuration Pads ............................................................................ 3-10 Section 4 AT73C240-EK1 Software Interface ............................................................................4-1 4.1 Software Panel................................................................................................................... 4-1 Section 5 Technical Specifications .............................................................................................5-1 5.1 AT73C240-EK1 .................................................................................................................. 5-1 5.2 Parallel-to-Serial Card........................................................................................................ 5-1 Section 6 PCB Layout.................................................................................................................6-1 6.1 AT73C240-EK1 .................................................................................................................. 6-1 6.2 Parallel-to-Serial Card........................................................................................................ 6-3 Section 7 Schematics .................................................................................................................7-1 Section 8 Revision History..........................................................................................................8-1 8.1 Revision History ................................................................................................................. 8-1 1-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Section 1 Introduction Congratulations on your purchase of the AT73C240-EK1. It is designed to give designers a quick start to evaluate the audio capability of the AT73C240 and for prototyping and testing of new designs. 1.1 Scope This document describes the AT73C240-EK1. This board is designed to allow an easy evaluation of the products using demonstration software. To increase its capabilities for demonstration, this standalone board has two serial interfaces (Serial Peripheral Interface and I²S via a dedicated connector). This user guide acts as a general getting started guide as well as a complete technical reference for advanced users. This document refers the AT73C240 Datasheet. Typical Applications: MP3-Player PDA, Camera, Mobile Phone Car Audio/Multimedia Home Audio/Multimedia AT73C240-EK1 Evaluation Kit User Guide 1-1 6482A–PMAAC–11-Jun-09 1.2 AT73C240-EK1 Features The AT73C240-EK1 provides the following features: Power supply: – AC/DC transformer input (6V to 9V) – or External Power Supply pad On-board resources: – 20-bit stereo audio DAC, – 90dB SNR playback stereo channels, – 1 stereo 32 Ohm/20mW stereo headset (3.5mm jack connector), – 1 speaker 8 Ohms output (3.5mm jack connector), – 1 line stereo input (2 RCA) Serial interfaces: – SPI (by default), – TWI (by hardware modification), – I²S On-board buttons: – AT73C240 Reset, – SPI/TWI Communication, – TWI Address selection 1.3 Deliverables The AT73C240-EK1 package contains the following items: An AT73C240-EK1 board, A Parallel-to-Serial board, A DC/DC power supply cable, 20-Lead flat cable, A parallel cable, One CD-ROM containing the product’s software, User Guide and a full Datasheet. 1-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Figure 1-1. AT73C240-EK1 Top View (card photo) The AT73C240 is located in the center of the AT73C240-EK1 on the Components Side. Figure 1-2. AT73C240-EK1Card With Available Connections AT73C240-EK1 Evaluation Kit User Guide 1-3 6482A–PMAAC–11-Jun-09 Figure 1-3. 1-4 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Components Side AT73C240-EK1 Evaluation Kit User Guide Section 2 Getting Started 2.1 Electrostatic Warning The AT73C240-EK1 evaluation board is shipped in protective anti-static packaging. The board must not be subjected to high electrostatic potentials. A grounding strap or similar protective device should be connected when handling the board. Avoid touching the components pins or any metallic element. 2.2 Requirements In order to set up the AT73C240-EK1 evaluation kit the following items are needed: 1. The AT73C240-EK1 evaluation board itself. 2. A DC output power source for main supply: – Transformer 6V to 9V DC max (minimum 500 mA is required) or, – External power supply connected to Vin pad. 3. A DC output power source for Power Amplifier supply: – Transformer 3V to 5.5V DC max (minimum 300mA is required) or, – External power supply connected to Vbat pad. 4. Input/Output devices (Headset, Speaker, etc) 5. PC station with an extension peripheral of SPI/TWI (i.e. Parallel-to-Serial board) for command communication (via micro-controller or PC) and/or an I²S extension for audio streaming. 2.3 PC System Requirements For a correct software operation of the AT73C240-EK1 evaluation board, the minimum hardware and software PC requirements are: Intel® Pentium® II processor 64 MB RAM 70 MB free hard disk space (for AT73C240 Evaluation board software installation) Windows® 2000/XP/VISTA A parallel port. AT73C240-EK1 Evaluation Kit User Guide 2-1 6482A–PMAAC–11-Jun-09 2.4 Instructions 2.4.1 To start the AT73C240-EK1 board (before using the AT73C240-EK1 software) Install «DLPORTIO.exe» from the provided software CD and restart your PC. Install the AT73C240 software by clicking on setup.exe. If the software is downloaded from the Atmel Web site then it is necessary to install first the National Instrument Labview software (LabVIEW8.0.1RuntimeEngine). Configure the on-board jumpers as in the relevant paragraphs: 1. Section 2.7.3 ”On Board Supply Voltage” on page 2-6 2. Section 2.8.2 ”SPI Setup” on page 2-8 3. Section 2.8.3 ”TWI Setup” on page 2-9 2.4.2 Connect DC/DC power supply cable between AT73C240-EK1 board and Parallel-to-Serial card (Section 2.7.1 ”AC/DC Transformer or External Power Supply” on page 2-4) or if used connect an external power supply on Audio Amplifier (Section 2.7.2 ”Supply With a Power Supply on Audio Power Amplifier” on page 2-6) Connect Input and Output devices to the AT73C240-EK1 board (into linein, Headset, Power Amplifier, etc..) as in Section 2.9 ”Audio Interfaces” on page 2-11, Connect a transformer to the Parallel-to-Serial card, Connect the Parallel cable to the Parallel-to-Serial card and then, connect the 20-pin flat cable between the to Parallel-to-Serial card and the AT73C240-EK1 board. An I²S serial interface extension (J2) is available for connecting a micro-controller directly to the AT73C240, Launch the AT73C240 software Test interface by clicking on AT73C240.exe To turn off the AT73C240-EK1 evaluation board 2-2 6482A–PMAAC–11-Jun-09 Disconnect the chosen power supply. AT73C240-EK1 Evaluation Kit User Guide 2.5 Block Diagram Figure 2-1. AT73C240-EK1 Block Diagram AC/DC Transformer Transformer Jack Power Amplifier PA Jack AT73C240 Li-Ion Battery From Paralle-to-Serial Card or Microcontroller 20 Pins Header From µC 4 Pins Header Line in Right RCA TWI Audio Mixer SPI Line in Left RCA I²S Headset Jack 2.6 Typical Connection Application Figure 2-2. Typical Application Connections Serial Audio Interface 6V to 9V from AC/DC Transformer Min 500mA I²S Header 6V to 9V Min 500mA 20 Leads Flat Cable (TWI / SPI) Power Amplifier 2x10 Pins Header 2x10 Pins Header 25 Pins Connector Standard Parallel Cable Parallel-to-Serial Card AT73C240-EK1 Board Line In Right/Left Headset AT73C240-EK1 Evaluation Kit User Guide 2-3 6482A–PMAAC–11-Jun-09 2.7 Power Supply The AT73C240-EK1 is supplied with the following voltage sources: DC/DC Power supply cable from Parallel-to-serial card (connected on J4 of Parallel-to-Serial card and on J4 of AT73C240-EK1) and, External Power Supply (connected on J1 of Parallel-to-Serial card) and, External Power Supply (connected on P3 of AT73C240-EK1); This last power supply is not necessary if J13 is closed. Figure 2-3. Power Supply Diagram Parallel-to-serial card AT73C240-EK1 U1 U2 AC/DC Transformer 6V to 9V/ 500mA min DC/DC power supply cable J1 J4 6V to 9V 2.8V Regulator J4 AT73C240 Stereo DAC & Power Amplifier P1 25 Pins Connector J13 3.6V (Vbat) U3 Regulator P2 Ground Pad Ground Pad 2.7.1 P4 P3 VBAT Pad AC/DC Transformer or External Power Supply The transformer is used as the main power source (Vin) for the AT73C240-EK1. Connect it, to J1 of Parallel-to-serial card (NEB21R type), when using the software. Table 2-1. Transformer Requirements Power supply source Min Max Unit Transformer (minimum 500 mA is required) 6 9 V The power supply voltage is regulated with on board circuitry. Input voltage on this connector should be between 6V and 9V. Note: Figure 2-4. This power supply input is NOT protected against polarization inversion. Operating The AT73C240-EK1(J4) J4 From Parallel-to-serial card (6V to 9V) 2-4 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Figure 2-5. AC/DC Connector (J1) GND Input Voltage Front View Side View Input Voltage GND If chosen as an alternative, connect the power supply (+) to Vin pad (P1) and (-) to GND pad (P2). Figure 2-6. Vin Supply Pad (P1) P1 Vin (6V to 9V) P2 GND J13 - VBAT Jumper (Connect an Ampermeter in serial for current measuerments) AT73C240-EK1 Evaluation Kit User Guide 2-5 6482A–PMAAC–11-Jun-09 2.7.2 Supply With a Power Supply on Audio Power Amplifier If chosen, the Audio Power Amplifier of the AT73C240 can be supply by an external supply. Connect the supply (+) to pad P3 and (-) to GND pad P4 and remove the jumper J13. Figure 2-7. PA Supplied by an external power supply J13 - VBAT Jumper (Disconnect it when using external power supply) P3 VBAT Pad 2.7.3 On Board Supply Voltage The on board supply voltage “grain-cafe“ (G4, G5, & G6 located on the print-side of the board - layer 2) enable correct connection between the Power Supply and the AT73C240. Keep these jumpers closed or open them for current measurements (see Figure 2-18 on page 2-13). Figure 2-8. 2-6 6482A–PMAAC–11-Jun-09 On Board Supply Jumpers AT73C240-EK1 Evaluation Kit User Guide 2.8 Communication Interfaces 2.8.1 Serial Interfaces Header The following table details the pin assignments for each signal. In the case of not using the Parallel-toSerial board, a serial communication (SPI or TWI) cable can drive directly by connecting it to the 2x10 pin header (J1 - Type HE10 for flat cable). Note: MCLK must run during any SPI or TWI write access. In any case of not using the Serial Board and connecting an external communication system for SPI or TWI, a MCLK should be connected on pin 12. Otherwise, when using the Serial Board, MCLK is provided. Please consult the product Datasheet for MCLK configuration. Table 2-2. Serial Interface Header Pins Assigning Pin N° Signal Name Description Pin N° Signal Name Description 1 MOSI_DIN Data in 2 - Not Used 3 SPCK SPI Clock 4 GND Ground 5 NPCS1 SPI CS 6 - Not Used 7 - Not Used 8 GND Ground 9 TWCK TWI Clock 10 2V8 2.8V out 11 LRFS (1) I²S LRFS 12 MCLK I²S M-clock 13 SDIN I²S Data in(1) 14 - Not Used 15 - Not Used 16 - Not Used I²S B-clock 18 SPI_DOUT_MISO SPI Data out Not Used 20 TWD TWI Data 17 BCLK 19 - Note: (1) 1. The I²S signals are independent. They are connected to the Serial Interface Header but not to the level-shifter on the Parallel-to-Serial card. AT73C240-EK1 Evaluation Kit User Guide 2-7 6482A–PMAAC–11-Jun-09 Figure 2-9. Serial Interfaces Header (J1) J1 GPIO Connector 2.8.2 SPI Setup The SPI protocol is detailed in the product Datasheet. Before connecting a SPI signal to the Serial Interface Header, configure G1, G2, G3 and G7 as in the following figure (for soldering instructions see Figure 2-19 on page 2-13): G1, G2, G3 pads 1 and 2 are soldered G7 pads 2 and 3 are soldered Figure 2-10. SPI Setup G7 1 123 G1 3 1 G2 3 1 G3 2-8 6482A–PMAAC–11-Jun-09 3 AT73C240-EK1 Evaluation Kit User Guide 2.8.3 TWI Setup The TWI protocol is details in the product Datasheet. Before connecting a TWI signal to the Serial Interface Header, configure G1, G2, G3, G7 and SW1 (for TWI address) as in the following figures (for soldering instructions see Figure 2-19 on page 2-13): SW1 is switched to the address when: GND = Address 0x1A and 2.8V = Address 0x1B, G1, G2, G3 pads 2 and 3 are soldered, G7 pads 1 and 2 are soldered. Figure 2-11. TWI Setup G7 1 123 G1 3 1 G2 3 1 G3 3 SW1 TWI Address Figure 2-12. TWI Address Switch (SW1) - Case Address = 0 G7 1 123 G1 3 1 G2 3 1 G3 3 SW1 TWI Address 0x1A AT73C240-EK1 Evaluation Kit User Guide 2-9 6482A–PMAAC–11-Jun-09 Figure 2-13. TWI Address Switch (SW1) - Case Address = 1 G7 1 123 G1 3 1 G2 3 1 G3 3 SW1 TWI Address 0x1B 2.8.4 I²S Extension Header An 1x5 pin header (J2) is use as an extension to directly drive the I²S interface from an external host. Its signals are connected in Parallel-to-Serial Interface Header (J1). see Section 2-2 ”Serial Interface Header Pins Assigning” on page 2-7. Pin N° 1 - GND. Pin N° 2 - MCLK. Pin N° 3 - LRFS. Pin N° 4 - BCLK. Pin N° 5 - SDIN. Figure 2-14. I²S Serial Header (J2) 1 J2 I2S Connector J1 Serial Interface Header 2-10 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide 2.9 Audio Interfaces 2.9.1 Headset 32 Ohms Output The Headset output is connected to a 3.5mm jack connector (J7). The positive and negative output signals can be monitored on J5 and J6. Figure 2-15. Headset Connector (J7) J5 - Left Headset Testpoint J6 - Right Headset Testpoint J7 Headset Connector 2.9.2 Power Amplifier Output (PA) The Power Amplifier output is connected to a 2-screw connector (J12). The positive output is connected to pin 1 and the negative to pin 2. Figure 2-16. Power Amplifier Connector (J12) MONON - J10 MONOP - J11 Positive Output J12 Power Amplifier Negative Output Note: By default the MONON and MONOP outputs are looped to PAIN pins (see Figure 7-1 on page 7-1 ). If needed these signals can be monitored on J10 and J11. AT73C240-EK1 Evaluation Kit User Guide 2-11 6482A–PMAAC–11-Jun-09 2.9.2.1 Line Inputs A line stereo signal can be sent through RCA connectors J8 (Left) and J9 (Right). Figure 2-17. Line Input (J8 & J9) J9 Line In Right J8 Line In Left 2-12 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide 2.10 General Configuration 2.10.1 Configuration Pads A configuration pad configures the AT73C240-EK1 Evaluation Board for custom application. The configuration is programmable by soldering a specific part of the configuration pad. To return to the initial configuration, the customer has to solder a short jumper. Figure 2-18. Configuration Pads Connected Solder Not connected No solder Figure 2-19. Configuration Pads with 2 Options Connected Solder Not connected No solder 2.10.1.1 Measurement Probing Any measurement should be done with a CLOSED configuration pad. Figure 2-20. Voltage Probing Voltage Probe Connected Solder Figure 2-21. Current Probing A Not connected No solder AT73C240-EK1 Evaluation Kit User Guide 2-13 6482A–PMAAC–11-Jun-09 2-14 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Section 3 Parallel-to-serial Card The Parallel-to-Serial card allows computer terminals to communicate with all PMAAC product line. It gives designers all necessary for a quick setup of an extended card and it supports different product’s software. To increase its capabilities for demonstration, this standalone board has two serial interfaces (TWI and SPI). 3.1 Parallel-to-serial Card Features The Parallel-to-Serial card provides the following features: Power supply: – AC/DC transformer or, – External supply. On-board resources: – Standard 25 pins Parallel interface, – 20 leads GPIO connector, – 12.288MHz Clock output for digital core, – Adjustable 1.8V to 3.9V output voltage (1A max) – Fixed 3.3V output voltage (100mA max), – 3 power identification leds. Serial interfaces: – Bidirectional buffered Parallel to SPI, – Bidirectional buffered Parallel to TWI. On-board buttons: – Vpad Selection. AT73C240-EK1 Evaluation Kit User Guide 3-1 6482A–PMAAC–11-Jun-09 3.2 Parallel-to-serial Card Components Placement Figure 3-1. 3.3 Parallel-to-serial Card Components Placement Electrostatic Warning The Parallel-to-Serial card evaluation board is shipped in protective anti-static packaging. The board must not be subjected to high electrostatic potentials. A grounding strap or similar protective device should be connected when handling the board. Avoid touching the components pins or any metallic element. 3.4 Requirements In order to set up the Parallel-to-Serial card the following items are needed: 4. The Parallel-to-Serial card itself. 5. An output DC power source: – Transformer 6V to 9V DC max (minimum 500 mA is required) or, – External power supply connected to Vin pad. 6. PC station with a 25 pins parallel connector. 3-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide 3.5 Instructions 3.5.1 To start the Parallel-to-Serial card (before using any software) Configure the on-board switches and trimmer as in the relevant paragraphs: 1. Section 3.7.2 ”Vpad Supply Option” on page 3-7 2. Section 3.7.3 ”Adjustable Output Voltage” on page 3-8 3. Section 3.8.2 ”12.288 MHz Clock” on page 3-10 4. Section 3.8.3 ”On Board Configuration Pads” on page 3-10 5. Section 2.10 ”General Configuration” on page 2-13 3.5.2 Connect a transformer to the Parallel-to-Serial card (Section 3.7.1 ”AC/DC Transformer” on page 3-5), Connect the Parallel cable to the Parallel-to-Serial card and then, Connect the 20-pins flat cable between the to Parallel-to-Serial card and the evaluation board. Once the Serial Communication Card properly installed; it should operate transparently - as if it were a standard cable connection. Operating power supplied directly from the AC/DC transformer; there is no ON/OFF switch. All data signals from and to the PC are passed straight through. To turn off the Parallel-to-Serial card evaluation board Disconnect the chosen power supply. AT73C240-EK1 Evaluation Kit User Guide 3-3 6482A–PMAAC–11-Jun-09 3.6 Block Diagram Figure 3-2. Parallel-to-Serial Card Block Diagram AC/DC Transformer Power Supply Transformer Jack Vout_Adj 3.3V Vin_Pad Standard Parallel Cable I/O 25 pins Connector Buffers 20 pins Header TWI SPI 12.288 MHz 3.7 Clock Power Supply The Parallel-to-Serial card is supplied with the following voltage sources: AC/DC Transformer (connected on J1) or, External Power Supply (connected on TP1 and GND) Figure 3-3. Power Supply Diagram Output power supply for supported card J4 J3 U1 3.3V Pin 6 Regulator TP1 Transformer 6V to 9V J1 Vin U2 Regulator U3 5V 20 Pins Header To Buffers (PC side) Vout_adj Pin 2 Regulator Pin 10 TP2 TP3 Ground Test points R1 SW1 To Buffers (GPIO Side) 3-4 6482A–PMAAC–11-Jun-09 Vin_pad Vpad SW2 AT73C240-EK1 Evaluation Kit User Guide 3.7.1 AC/DC Transformer The transformer is used as the main power source (AC/DC) for the Parallel-to-Serial card. Connect it, to J1 (NEB21R type), before using any software. Table 3-1. Transformer Requirements Power supply source Min Max Unit Transformer (minimum 500 mA is required) 6 9 V The power supply voltage is regulated with on board circuitry. Input voltage on this connector should be included between 6V and 9V. It can supply-power a supported card trough J4 connector which enables to use only the main AC/DC Transformer (connected on J1). Use the two-side male 2.1mm cable to connect power-supply between the two card (see Figure 3-4 on page 3-35). Note: Figure 3-4. This power supply input is NOT protected against polarization inversion. Operating The Parallel-to-Serial card With Transformer (J1) Connector for supported evaluation board Input Supply from AC/DC Trans- Figure 3-5. AC/DC Connector (J1) GND Input Voltage Front View Side View Input Voltage GND If chosen as an alternative, connect the power supply (+) to Vin test-point (TP1) and (-) to GND tsetpoint(TP2 or TP3). AT73C240-EK1 Evaluation Kit User Guide 3-5 6482A–PMAAC–11-Jun-09 Figure 3-6. Vin Supply Test-Points TP1 TP2 TP3 On the Parallel-to-Serial card 3 leds indicate voltage present: D1 - Adjustable Output Voltage D2 - +3.3V D3 - +5V Figure 3-7. Voltages identification Leds D1 Vout_ Adj Led D3 +5V Led 3-6 6482A–PMAAC–11-Jun-09 D2 +3.3V Led AT73C240-EK1 Evaluation Kit User Guide 3.7.2 Vpad Supply Option The Vpad is the supply voltage for the buffers for the extension card side. It is the choice of the user to determinate Vpad functionality and there are 3 option: 1. Supply by Vin_Pad - from an extension card (pin 10 on J3). 2. Supply by 3.3V - from on board 3.3V LDO (U2) 3. Supply by adjustable voltage - from on board adjustable Regulator (U3); see “Adjustable Output Voltage” on page 3-8 Please consult the following 3 figures for Vpad supply available options. Figure 3-8. Vpad Supplied By Vin_Pad SW2 is in Vin_Pad position. SW1 has no effect. Figure 3-9. Vpad Supplied By On Board 3.3V SW2 is in VO_adj/+3V3 position. SW1 is in +3V3 position. Figure 3-10. Vpad Supplied By Board Adjustable Voltage SW2 is in VO_adj/+3V3 position. SW1 is in VO_adj position. AT73C240-EK1 Evaluation Kit User Guide 3-7 6482A–PMAAC–11-Jun-09 3.7.3 Adjustable Output Voltage The Parallel-to-Serial card is able to supply up to 1A adjustable output voltage (Vout_adj = 1.8V to 3.9V) for powering an extended card. Vout_adj output level is trimmed by R1 and Its output pin is located on pin N° 2 on J3 header. Figure 3-11. Vout_adj Trimmer (R1) R2 Adjustable Voltage Trimmer 3-8 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide 3.8 Communication Interfaces 3.8.1 Serial Interfaces Header The Parallel-to-Serial card supports both SPI and TWI protocols which configured automatically by the software. The following table details the pins assigning for each signal on J3 (2x10 pins header - Type HE10 for flat cable). Note: In most cases, a clock must run during any SPI or TWI write access. In any case of not using the Serial Board and connecting an external communication system for SPI or TWI a clock should be provided to the supported evaluation card. Table 3-2. Serial Interface Header Pins Assigning Pin N° Signal Name Description Pin N° Signal Name Description 1 Data0_Out Output Data(1) 2 Vout_adj Adjustable Output Voltage (1A max) (4) 3 Data1_Out Output Data(1) 4 GND Ground(3) 5 Data2_Out Output Data(1) 6 +3V3 Output voltage (100mA max) 7 Data3_Out Output Data(1) 8 GND Ground(3) 9 Data4_Out Output Data(1) 10 Vin_pad Input supply from supported card 11 Data5_Out Output Data(1) 12 OSC 12.288MHz Output clock for supported digital core 13 Data6_Out Output Data(1) 14 NC Not Connected 15 Data7_Out (1) 16 -Error_in Input Data(2) 17 -Ack_in Input Data(2) 18 +Busy_in Input Data(2) 19 +PaperEnd_in Input Data(2) 20 +SelectIn_in Input Data(2) Output Data Notes: 1. Output Data - An output signal from parallel port to supported card. 2. Input Data - An input signal from supported card to parallel port. 3. Ground - These pins must be connected between the Parallel-to-Serial card and the supported board. 4. Output current is determinate by the limitation of the ACDC transformer. AT73C240-EK1 Evaluation Kit User Guide 3-9 6482A–PMAAC–11-Jun-09 Figure 3-12. Serial Interfaces Connectors (J2 & J3) 20 Pins Header Connect it to the flat cable 25 Pins Connector Connect it to the PC cable 3.8.2 12.288 MHz Clock The Parallel-to-Serial card’s oscillator (X1) provides 12.288MHz clock (+3.3V p-p). This clock is necessary for driving the digital core of the evaluated board - via pin 12 on J3. G6 connect the oscillator output clock with pin 12 on J3. Open it if clock is not necessary. Keep G7 enables/disable the oscillator. If open then clock is “ON”. If closed then clock is “OFF”. Figure 3-13. Oscillator Setup (U6) Keep G6 close for clock on Osc 12.288MHz Oscillator G7 Open clock on G7 Closed clock off 3.8.3 On Board Configuration Pads The “Grain-cafe” G1 to G5 are not soldered by default. Simply solder it if these signal should be connected to the buffers. 3-10 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Section 4 AT73C240-EK1 Software Interface 4.1 Software Panel Figure 4-1. Software Panel - General Purpose Page Line In Control DAC Master Control DAC Line Out Control Headset Control Exit Program Automatic Control Power Amplifier Control AT73C240-EK1 Evaluation Kit User Guide DAC Mixer Control DAC Miscellaneous 4-1 6482A–PMAAC–11-Jun-09 Figure 4-2. Software Panel - Registers Control TWI/SPI Selector (Must be setup before startup) Read Write Command Command Write Content Read Content Register Address Automatic Read Register Mapping Regiters Mapping Note: Figure 4-3. Resetting all the registers done by pressing once on the AT73C240 Reset push-button I2. In the next read action the registers will be at their default values. Reset AT73C240 Button I1 Reset AT73C240 4-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Section 5 Technical Specifications 5.1 AT73C240-EK1 System Unit: AT73C240-EK1 – Physical Dimensions............................................................................................ L= 80 x W=80 x H=20 mm – Weight.........................................................................................................................................................50 g Operating Conditions – External Voltage Supply (From AC/DC Transformer or on Vin Pad)...................................6V - 9V/500 mA – External Voltage Supply (on VBAT Pad)...........................................................................................3V - 5.5V Connections – Communication Connector.................................................................................................2x10 pins Header – I²S Serial Connector...............................................................................................................1x5 pins Header 5.2 Parallel-to-Serial Card System Unit: Parallel-to-Serial card – Physical Dimensions............................................................................................ L= 60 x W=85 x H=20 mm – Weight.........................................................................................................................................................50 g Operating Conditions – External Voltage Supply (From AC/DC Transformer)..........................................................6V - 9V/500 mA Connections – Communication Connector.................................................................................................2x10 pins Header AT73C240-EK1 Evaluation Kit User Guide 5-1 6482A–PMAAC–11-Jun-09 5-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Section 6 PCB Layout 6.1 AT73C240-EK1 Figure 6-1. Note: Layer 1 - Components Layer Size not to scale AT73C240-EK1 Evaluation Kit User Guide 6-1 6482A–PMAAC–11-Jun-09 Figure 6-2. Note: 6-2 6482A–PMAAC–11-Jun-09 Layer 2 Size not to scale AT73C240-EK1 Evaluation Kit User Guide 6.2 Parallel-to-Serial Card Figure 6-3. Note: Layer 1 - Components Layer Size not to scale AT73C240-EK1 Evaluation Kit User Guide 6-3 6482A–PMAAC–11-Jun-09 Figure 6-4. Note: 6-4 6482A–PMAAC–11-Jun-09 Layer 2 Size not to scale AT73C240-EK1 Evaluation Kit User Guide Section 7 Schematics Figure 7-1. AT73C240-EK1 Schematic AT73C240-EK1 Evaluation Kit User Guide 7-1 6482A–PMAAC–11-Jun-09 Figure 7-2. 7-2 6482A–PMAAC–11-Jun-09 Parallel-to-Serial Card Schematic AT73C240-EK1 Evaluation Kit User Guide Section 8 Revision History 8.1 Revision History Table 8-1. Revision History Document Comments 6482A First Issue, 15-May-2009 AT73C240-EK1 Evaluation Kit User Guide Change Request Ref. 8-1 6482A–PMAAC–11-Jun-09 8-2 6482A–PMAAC–11-Jun-09 AT73C240-EK1 Evaluation Kit User Guide Headquarters International Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Asia Unit 1-5 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon Hong Kong Tel: (852) 2245-6100 Fax: (852) 2722-1369 Atmel Europe Le Krebs 8, Rue Jean-Pierre Timbaud BP 309 78054 Saint-Quentin-enYvelines Cedex France Tel: (33) 1-30-60-70-00 Fax: (33) 1-30-60-71-11 Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Technical Support Atmel techincal support Sales Contacts www.atmel.com/contacts/ Product Contact Web Site www.atmel.com www.atmel.com/products/powermanage/default.asp Literature Requests www.atmel.com/literature Disclaimer: The information in this document is provided in connection with Atmel products. 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