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TMS320DM6437 Evaluation Module Technical Reference 509105-0001 Rev. C December 2006 SPECTRUM DIGITAL, INC. 12502 Exchange Drive, Suite 440 Stafford, TX. 77477 Tel: 281.494.4505 Fax: 281.494.5310 sales@spectrumdigital.com www.spectrumdigital.com...
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IMPORTANT NOTICE Spectrum Digital, Inc. reserves the right to make changes to its products or to discontinue any product or service without notice. Customers are advised to obtain the latest version of relevant information to verify that the data being relied on is current before placing orders.
Contents Introduction to the DM6437 Evaluation Module ....... . Provides you with a description of the DM6437 Evaluation Module, key features, and block diagram.
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Physical Specifications ........... . Describes the physical layout of the DM6437 Evaluation Module and its connectors.
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About This Manual This document describes the board level operations of the DM6437 Evaluation Module (EVM). The EVM is based on the Texas Instruments TMS320DM6437 Processor. The DM6437 Evaluation Module is a table top card that allows engineers and software developers to evaluate certain characteristics of the DM6437 processor to determine if the processor meets the designers application requirements.
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Related Documents, Application Notes and User Guides Information regarding this device can be found at the following Texas Instruments website: http://www.ti.com...
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Table 1: Manual History Revision History Alpha Release Beta Release Table 2: Board History Revision History Alpha Release Beta Release...
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Chapter 1 Introduction to the DM6437 EVM Chapter One provides a description of the DM6437 EVM along with the key features and a block diagram of the circuit board. Topic Page Key Features Functional Overview Basic Operation Memory Map Configuration Switch Settings Power Supply Power Measurement...
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Spectrum Digital, Inc 1.1 Key Features The DM6437 EVM is a PCI based or standalone development platform that enables users to evaluate and develop applications for the TI DaVinci processor family. Schematics, list of materials, and application notes are available to ease hardware development and reduce time to market.
Spectrum Digital, Inc VLYNQ, and ethernet MAC interfaces are integrated peripherals on the DM6437 processor exploiting its system on a chip architecture. VLYNQ is available when the PCI is not used. An included 5V external power supply is used to power the board. On-board switching voltage regulators provide the +1.2V CPU core voltage and +3.3V for peripherals and...
Spectrum Digital, Inc 1.4 Memory Map The DaVinci family of processors have a large byte addressable address space, some limitations to byte addressing are determined by peripheral interconnection to the DM6437 device. Program code and data can be placed anywhere in the unified address space.
Spectrum Digital, Inc 1.5 Configuration Switch Settings The EVM has a two configuration switches that allow users to control the operational state of the processor when it is released from reset. The configuration switches are labeled SW1 and SW2 on the EVM board.
Spectrum Digital, Inc 2.1 EMIF Interfaces A separate 8 bit EMIF with multiple chip selects divide up the address space and allow for asynchronous accesses on the EVM. On board the CS2 is used for Flash, NAND Flash, or SRAM.
Spectrum Digital, Inc 2.2.3 CAN Interface The internal CAN controller on the DM6437 device is driven to connector P7. The controller is routed to a Texas Instruments SN65HVD235 CAN controller prior to being routed to female DB-9 connector, P7. The on board CAN signals can be disabled by pulling CAN_ENABLEn high via the daughter card connector.
Spectrum Digital, Inc 2.4 AIC33 Interface The EVM uses a Texas Instruments TLV320AIC33 stereo codec for input and output of audio signals. The codec samples analog signals on the microphone or line inputs and converts them into digital data so it can be processed by the DSP. When the DSP is finished with the data it uses the codec to convert the samples back into analog signals on the line output so the user can hear the output.
Spectrum Digital, Inc 2.4.1 Audio PLL/VCXO Circuit/PLL1705 Clock Generator The DM6437 EVM implements a multiple PLL clock generator for creating the Audio clocks for the board. In streaming video applications the audio and video sequences can lose synchronization. The DM6437 uses a VCXO interpolation circuit to incrementally speed up or slow down the STCLK input to allow for this synchronization to remain locked.
Spectrum Digital, Inc 2.5 Ethernet Interface The DM6437 integrates an ethernet MAC on chip. This interface is routed to the PHY via CBT switches. The EVM uses an Micrel KS8001L PHY. The 10/100 Mbit interface is isolated and brought out to a RJ-45 standard ethernet connector, P3. The PHY directly interfaces to the DM6437.
Spectrum Digital, Inc 2.6.1 I/O Expanders The DM6437 EVM uses four I C expanders to handle various bit I/O functions. Each of these is an 8 bit I/O expander, a PCF8574A. At Power Up Reset the expanders are initialized to 0xFF, all ones. The functions for each of the I/O expanders are shown in the tables below.
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Spectrum Digital, Inc Table 4: U13 I/O Expander Pin Number Function Mode Description User I/O Daughter Card, DC_P2 Pin 87 User I/O Daughter Card, DC_P2 Pin 88 User I/O Daughter Card, DC_P2 Pin 85 User I/O Daughter Card, DC_P2 Pin 84...
This eeprom is also used to store the ethernet MAC address and the board’s revision. The MAC address is also labeled on the board. Care should be taken not to erase these items when user information is stored in the eeprom. Spectrum Digital uses addresses 0x7F00 to 0x7FFF for manufacturing information. This information is shown in the table below.
Spectrum Digital, Inc 2.8 Daughter Card Interfaces The EVM provides expansion connectors that can be used to accept plug-in daughter cards. The daughter card allows users to build on their EVM platform to extend its capabilities and provide customer and application specific I/O. The expansion connectors are for all major interfaces including memory, peripherals, and video expansion.
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Chapter 3 Physical Description This chapter describes the physical layout of the DM6437 EVM and its interfaces. Topic Page Board Layout Connectors 3.2.1 J1, DAC A Video Out 3.2.2 J2, DAC B Video Out 3.2.3 J3, DAC C Video Out 3.2.4 J4, DAC D Video Out 3.2.5...
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Spectrum Digital, Inc 3.1 Board Layout The DM6437 EVM is a 8.75 x 4.5 inch (210 x 115 mm.) ten (10) layer printed circuit board which is powered by an external +5 volt only power supply. Figure 3-1 shows the layout of the DM6437 EVM.
Spectrum Digital, Inc 3.2 Connectors The EVM has twenty three (23) connectors providing interfaces to various peripherals. These connectors are described in the following sections. Table 1: Connectors Connector Size Function DAC A * DAC B DAC C DAC D...
Spectrum Digital, Inc 3.2.1 J1, DAC A Video Out J1 is an RCA jack used to interface to DAC A of the DM6437 to a video device. This connector is driven directly by the VPSS back end via an opamp. This connector is not installed for clearance reasons when using the PCI bus.
Spectrum Digital, Inc 3.2.4 J4, DAC D Video Out J1 is an RCA jack used to interface to DAC D of the DM6437 to a video device. This connector is driven directly by the VPSS back end via an opamp. This connector is not installed for clearance reasons when using the PCI bus.
Spectrum Digital, Inc 3.2.6 J10, S/PDIF Out J10 is an RCA jack used as an analog output from the McBSP FSR signal on the DSP. This connector brings out the SPDIF signal. Do NOT plug into this connector with the power on.
Spectrum Digital, Inc 3.2.8 J20, Mini PCI Interface Connector J20 provides a mini-PCI on the DM6437 EVM. Do NOT plug into this connector with the power on. The table below shows the signals on this connector. Table 4: J16, VLYNQ Card Interface...
Spectrum Digital, Inc 3.2.9 J501, Embedded Mini USB Emulation Interface This connector allows the user to run software development tools and emulation without an external emulator. The signals on this connector are shown in the table below. Table 5: J501, Embedded Mini USB Emulation Interface...
Spectrum Digital, Inc 3.2.11 P2, Video In Connector P2 is a four pin mini din S-video connector which interfaces to the TVP5146M2 encoder. This connector brings in a video signal (LUMA) to pin 9 on the TVP5146M2. Do NOT plug into this connector with the power on. The figure below shows this connector as viewed from the card edge.
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Spectrum Digital, Inc 3.2.13 P4, PCI Connector The P4 connector is a card edge PCI interface. This connector has an “A” and “B” side. Because of the card seating notches the pin numbers are not contiguous. The “B” side is the top component side. The I/O direction field is referenced from the PCI slot.
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Spectrum Digital, Inc The signals on the “B” side of the connector are shown in the table below. Table 11: P4, PCI Connector, “B” Side Signal Description Signal Description -12 Volts Not Used Not Used Ground Tied to TDO +5 Volts...
Spectrum Digital, Inc 3.2.14 P7, CAN Connector The DM6437 EVM has a 9 Pin female D-connector which brings out the CAN transmit and receive signals. This CAN interface uses the SN65HVD235 CAN driver. The pin positions for the P7 connector as viewed from the edge of the printed circuit board are shown below.
Spectrum Digital, Inc 3.2.15 P8, RS-232 UART Connector The DM6437 EVM has an RS-232 connector which brings out the SCI transmit and receive signals to be used as UART. This UART uses the MAX3221 RS-232 line driver and is routed to a male 9 pin D-connector, P8. The pin positions for the P8 connector as viewed from the edge of the printed circuit board are shown below.
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Spectrum Digital, Inc 3.2.16 P10, Audio Line In Connector The audio line in is a stereo input. The input connector is a 3.5 mm stereo jack. The signals on the mating plug are shown in the figure below. Ground Right Line In...
Spectrum Digital, Inc 3.2.19 P12, Audio Line Out Connector The audio line out is a stereo output. The output connector is a 3.5 mm stereo jack. The signals on the mating plug are shown in the figure below. Ground Right Line Out...
Spectrum Digital, Inc 3.2.23 DC_P3, VLYNQ Connector The DC_P3 connector allows the user to connect the VLYNQ interface to other logic. The pinout for the DC_P3 connector is shown in the table below. Table 16: DC_P3, VLYNQ Header Pin #...
Spectrum Digital, Inc 3.3.1 JP1 Jumper Jumper JP1 is used to select the display output format, NTSC or PAL. This jumper must be populated in one of the two configurations. When the center to NTSC is selected the display output will be NTSC format. When the center to PAL is selected the display output will be in PAL format.
Spectrum Digital, Inc 3.3.3 JP3 Jumper Jumper JP3 is a jumper used to allow external switches to interface to the DM6437 power up reset signal. 3.3.4 JP4 Jumper Jumper JP4 is a jumper used to allow external switches to interface to the DM6437 reset signal.
Spectrum Digital, Inc 3.5 Switches The DM6437 EVM has seven (7) switches. These switches are used to create certain actions on the board or to select certain functions on the board. The switch functions are summarized in the table below.
Spectrum Digital, Inc 3.5.2 SW2, Bootload Configuration Select Switch SW2 is an 4 position switch used to select the DM6437 multiplexing options at reset. The selection are shown in the table below. Table 21: SW2, Bootload Configuration Select Position Function...
Spectrum Digital, Inc 3.5.7 SW7, Slide Switch Switch SW7 is a 2 position slide switch used by demonstration software. The switch is read via a I C expander. Refer to the I C section for more information. 3-24 DM6437 EVM Technical Reference...
Spectrum Digital, Inc 3.6 Test Points The EVM has 51 test points. All test points appear on the top of the board. The following figure identifies the position of each test point. the next table list each test point and the signal appearing on that test point.
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Spectrum Digital, Inc Table 23: DM6437 EVM Test Points Test Point Test Point Signal Signal RESETOUTn TP27 RSV4 TP28 RSV5 TP29 TP30 TP31 VCC_5V TP10 TP32 3V3_PWR_OK TP12 Ethernet PHY Interrupt Pin TP36 1V8_PWR_OK TP13 CAN Driver Output B_CANH TP40...
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