Spectrum Digital eZdsp R2812 USB Technical Reference Download Page 35 | Manualshive

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Spectrum Digital eZdsp R2812 USB Technical Reference Download Page 35

A-1

Appendix A

eZdsp

TM

R2812

Schematics

The schematics for the eZdsp

TM

R2812 can be found on the CD-ROM that

accompanies this board. The schematics were drawn on ORCAD.

WARNING !

The TMS320R2812 su3.3V Input/Output levels
which are NOT +5V tolerant. Connecting the eZdsp to
a system with +5V Input/Output levels will damage the
TMS320R2812. If the eZdsp is connected to another
target then the eZdsp must be powered up first and
powered down last to prevent lactchup conditions.

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Summary of Contents for eZdsp R2812 USB

Page 1: ...eZdspTM R2812 USB 2004 DSP Development Systems Reference Technical...

Page 2: ......

Page 3: ...12 USB Technical Reference 507715 0001 Rev B September 2004 SPECTRUM DIGITAL INC 12502 Exchange Dr Suite 440 Stafford TX 77477 Tel 281 494 4505 Fax 281 494 5310 sales spectrumdigital com www spectrumd...

Page 4: ...uct design software performance or infringement of patents or services described herein Nor does Spectrum Digital warrant or represent any license either express or implied is granted under any patent...

Page 5: ...7 2 3 2 P2 Expansion Interface 2 8 2 3 3 P3 USB Port JTAG Interface 2 10 2 3 4 P4 P8 P7 I O Interface 2 10 2 3 5 P5 P9 Analog Interface 2 12 2 3 6 P6 Power Connector 2 14 2 3 7 Connector Part Numbers...

Page 6: ...Layout 2 17 Figure 2 12 JP5 Layout 2 18 Figure 2 13 SW501 Layout 2 17 List of Tables Table 2 1 External Chip Select and Usages 2 3 Table 2 2 External Memory Timing 2 5 Table 2 3 eZdspTM R2812 Connecto...

Page 7: ...rsion Program listings program examples and interactive displays are shown in a special italic typeface Here is a sample program listing equations rd strobe rw Information About Cautions This book may...

Page 8: ......

Page 9: ...s a description of the eZdspTM for the TMS320R2812 Digital Signal Processor key features and block diagram of the circuit board Topic Page 1 0 Overview of the eZdspTM R2812 1 2 1 1 Key Features of the...

Page 10: ...d configuration To simplify code development and shorten debugging time a C2000 Tools Code Composer driver is provided In addition an onboard JTAG connector provides interface to emulators operating w...

Page 11: ...12 The major interfaces of the eZdsp are the JTAG interface and expansion interface TMS320R28xx ANALOG TO DIGITAL CONVERTER USB PORT Figure 1 1 BLOCK DIAGRAM eZdspTM R2812 A N A L O G E X P A N S I O...

Page 12: ...Spectrum Digital Inc 1 4 eZdspTM R2812 Technical Reference...

Page 13: ...JTAG Interface 2 7 2 3 2 P2 Expansion Interface 2 8 2 3 3 P3 USB Port JTAG Interface 2 10 2 3 4 P4 P8 P7 I O Interface 2 10 2 3 5 P5 P9 Analog Interface 2 12 2 3 6 P6 Power Connector 2 14 2 3 7 Conne...

Page 14: ...ncluded The eZdspTM R2812 consists of four major blocks of logic Analog Interface Connector I O Interface Connector JTAG Interface USB Port JTAG Controller Interface 2 1 The eZdspTM R2812 Board The eZ...

Page 15: ...addition 64K x 16 off chip SRAM is provided The processor on the eZdsp can be configured for boot loader mode or non boot loader mode For bootloading user code a 256K bit serial EEPROM is provided Th...

Page 16: ...Spectrum Digital Inc 2 4 eZdspTM R2812 Technical Reference 2 2 1 Memory Map The figure below shows the memory map configuration on the eZdspTM R2812 Figure 2 2 eZdspTM R2812 Memory Space...

Page 17: ...3 define XWRACTIVE x x 7 2 define XWRLEAD x x 3 5 define XRDTRAIL x x 3 7 define XRDACTIVE x x 7 9 define XRDLEAD x x 3 12 define USEREADY 1 14 define ASYNCREADY 1 15 define XTIMING6 XWRTRAIL 2 XWRACT...

Page 18: ...d The function of each connector is shown in the table below The diagram below shows the position of each connector Table 3 eZdspTM R2812 Connectors Connector Function P1 JTAG Interface P2 Expansion J...

Page 19: ...Instruments DSPs The positions of the 14 pins on the P1 connector are shown in the diagram below as viewed from the top of the eZdsp The definition of P1 which has the JTAG signals is shown below Tab...

Page 20: ...hich are NOT 5V tolerant Connecting the eZdsp to a system with 5V Input Output levels will damage the TMS320R2812 If the eZdsp is connected to another target then the eZdsp must be powered up first an...

Page 21: ...5 XD2 6 XD3 7 XD4 8 XD5 9 XD6 10 XD7 11 XD8 12 XD9 13 XD10 14 XD11 15 XD12 16 XD13 17 XD14 18 XD15 19 XA0 20 XA1 21 XA2 22 XA3 23 XA4 24 XA5 25 XA6 26 XA7 27 XA8 28 XA9 29 XA10 30 XA11 31 XA12 32 XA13...

Page 22: ...or C2000 Code Composer tools are shipped with the eZdsp modules 2 3 4 P4 P8 P7 I O Interface The connectors P4 P8 and P7 present the I O signals from the DSP The layout of these connectors are shown b...

Page 23: ...n 6 CAP1 QEP1 4 MCLKRA 7 CAP2 QEP2 8 CAP3 QEPI1 5 MFSXA 9 PWM1 10 PWM2 6 MFSRA 11 PWM3 12 PWM4 7 MDXA 13 PWM5 14 PWM6 8 MDRA 15 T1PWM T1CMP 16 T2PWM T2CMP 9 No connect 17 TDIRA 18 TCLKINA 10 GND 19 GN...

Page 24: ...s on the P5 P9 connectors are shown in the diagram below as viewed from the top of the eZdsp Table 7 P7 I O Connector P7 Pin P7 Signal 1 C1TRIPn 2 C2TRIPn 3 C3TRIPn 4 T2CTRIPn EVASOCn 5 C4TRIPn 6 C5TR...

Page 25: ...on Table 8 P5 P9 Analog Interface Connector P5 Pin Signal P9 Pin Signal P9 Pin Signal 1 ADCINB0 1 GND 2 ADCINA0 2 ADCINB1 3 GND 4 ADCINA1 3 ADCINB2 5 GND 6 ADCINA2 4 ADCINB3 7 GND 8 ADCINA3 5 ADCINB4...

Page 26: ...via the P6 connector The connector has an outside diameter of 5 5 mm and an inside diameter of 2 5 mm The position of the P6 connector is shown below The diagram of P6 which has the input power is sh...

Page 27: ...er to be supplied to the expansion headers The table below lists the jumpers and their function The following sections describe the use of each jumper Table 9 eZdspTM R2812 Suggested Connector Part Nu...

Page 28: ...lts or 5 volts to pins on the expansion connectors These jumpers are shipped uninstalled to prevent accidental damage by connecting wires or circuitry to the expansion connector The user may connect t...

Page 29: ...pin 1 of P4 The settings for this jumper are shown in the table below As shipped from factory Table 11 JP4 3 3 5 Volts for P8 P4 Position Function Jumper Position Middle Bottom Connect 5 Volts to P8 p...

Page 30: ...and 2 of expansion connector P2 The settings for this jumper are shown in the table below As shipped from factory Table 12 JP5 3 3 5 Volts for P2 Position Function Jumper Position Middle Right Connec...

Page 31: ...SP The selection of the open position enables the use of the PLL If the closed position is used the PLL is disabled This signal is latched at reset and may be used as XF after reset The positions are...

Page 32: ...actory 2 5 3 Switch SW501 Position 3 4 Boot Mode Select Positions 3 and 4 on switch SW501 along with position 2 are used to determine what mode the DSP will use for bootloading on power up The options...

Page 33: ...s under software control and is tied to the XF pin on the DSP through a buffer These are shown in the table below 2 7 Test Points The eZdspTM R2812 has two test points The signals they are tied to are...

Page 34: ...Spectrum Digital Inc 2 22 eZdspTM R2812 Technical Reference...

Page 35: ...hematics were drawn on ORCAD WARNING The TMS320R2812 supports 3 3V Input Output levels which are NOT 5V tolerant Connecting the eZdsp to a system with 5V Input Output levels will damage the TMS320R281...

Page 36: ...E REVI SI ON STATUS OF SHEETS REV SH DW N A DATE ENGR SH DATE A CHK A M FG 1 APPLI CATI ON NEXT ASSY DATE 3 A REV REVI SI ONS DESCRI PTI ON REV DATE APPROVED A PROTOTYPES 29 April 2004 The TMS320R2812...

Page 37: ...108 XA6 111 XA7 118 XA8 121 XA9 125 XA10 130 XA11 132 XA12 138 XA13 141 XA14 144 XA15 148 XA16 152 XA17 156 XA18 158 XD0 21 XD1 24 XD2 27 XD3 30 XD4 33 XD5 36 XD6 39 XD7 54 XD8 65 XD9 68 XD10 73 XD11...

Page 38: ...PICLKA 2 4 SPISTEA 2 4 SPISOMIA 2 4 Title Size Document Number R e v Date Sheet o f 507712 A TMS320R2812 EzDSP USB B 3 6 Friday May 28 2004 ASRAM 64Kx16 and 256Kx16 Compatible U17 AT25HP256 512 DIP 8...

Page 39: ...CLKA MODE 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 X X X X X SMT 4PIN DIP Connect VREFLO to AGND or to VREFLO of target system for proper ADC operation Tie off unused F24xx compatible signals Make a sold...

Page 40: ...SELECT USB EM ULATI ON USBSEL LOW SELECT XDS EM ULATI ON Loc at e near DSP TCK pi n Locate R7 R54 C70 at the DSP XRSn pin for best EMI ESD noise immunity I F U13 I S I NSTALLED THEN REM OVE R49 AND R...

Page 41: ...ES 0 3 VOLTS 18 2K1 899V U16 WILL TURN OFF THE 1 8V SUPPLY WHEN INPUT POWER FALLS BELOW 2 94V THIS SPEEDS UP THE 1 8V SUPPLY TURN OFF Power sequence is optional for the TMS320R2812 as it does not incl...

Page 42: ...Spectrum Digital Inc A 8 eZdspTM R2812 Technical Reference...

Page 43: ...B 1 Appendix B eZdspTM R2812 MechanicaI Information This appendix contains the mechanical information about the socketed and unsocketed versions of the eZdspTM R2812...

Page 44: ...Spectrum Digital Inc B 2 eZdspTM R2812 Technical Reference This drawing is not to scale...

Page 45: ......

Page 46: ...Printed in U S A September 2004 507715 0001 Rev B...

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