Motorola TMS320C6711D warranty Bootmode, Reset

Page 61

SPRS292A − OCTOBER 2005 − REVISED NOVEMBER 2005

bootmode

The C67xdevice resets using the active-low signal RESET and the internal reset signal. While RESET is low, the internal reset is also asserted and the device is held in reset and is initialized to the prescribed reset state. Refer to reset timing for reset timing characteristics and states of device pins during reset. The release of the internal reset signal (see the Reset Phase 3 discussion in the Reset Timing section of this data sheet) starts the processor running with the prescribed device configuration and boot mode.

The device has three types of boot modes:

DHost boot

If host boot is selected, upon release of internal reset, the CPU is internally “stalled” while the remainder of the device is released. During this period, an external host can initialize the CPU’s memory space as necessary through the host interface, including internal configuration registers, such as those that control the EMIF or other peripherals. Once the host is finished with all necessary initialization, it must set the DSPINT bit in the HPIC register to complete the boot process. This transition causes the boot configuration logic to bring the CPU out of the “stalled” state. The CPU then begins execution from address 0. The DSPINT condition is not latched by the CPU, because it occurs while the CPU is still internally “stalled”. Also, DSPINT brings the CPU out of the “stalled” state only if the host boot process is selected. All memory may be written to and read by the host. This allows for the host to verify what it sends to the DSP if required. After the CPU is out of the “stalled” state, the CPU needs to clear the DSPINT, otherwise, no more DSPINTs can be received.

DEmulation boot

Emulation boot mode is a variation of host boot. In this mode, it is not necessary for a host to load code or to set DSPINT to release the CPU from the “stalled” state. Instead, the emulator will set DSPINT if it has not been previously set so that the CPU can begin executing code from address 0. Prior to beginning execution, the emulator sets a breakpoint at address 0. This prevents the execution of invalid code by halting the CPU prior to executing the first instruction. Emulation boot is a good tool in the debug phase of development.

DEMIF boot (using default ROM timings)

Upon the release of internal reset, the 1K-Byte ROM code located in the beginning of CE1 is copied to address 0 by the EDMA using the default ROM timings, while the CPU is internally “stalled”. The data should be stored in the endian format that the system is using. The boot process also lets you choose the width of the ROM. In this case, the EMIF automatically assembles consecutive 8-bit bytes or 16-bit half-words to form the 32-bit instruction words to be copied. The transfer is automatically done by the EDMA as a single-frame block transfer from the ROM to address 0. After completion of the block transfer, the CPU is released from the “stalled” state and start running from address 0.

reset

A hardware reset (RESET) is required to place the DSP into a known good state out of power−up. The RESET signal can be asserted (pulled low) prior to ramping the core and I/O voltages or after the core and I/O voltages have reached their proper operating conditions. As a best practice, reset should be held low during power−up. Prior to deasserting RESET (low−to−high transition), the core and I/O voltages should be at their proper operating conditions and CLKIN should also be running at the correct frequency.

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443

61

Page 60 Page 62
Image 61
Page 60 Page 62
Contents SPRS292A − October 2005 − Revised November Table of Contents Pages ADDITIONS/CHANGES/DELETIONS Revision HistoryMultichannel Buffered Serial Port Timing GDP and ZDP 272-PIN Ball Grid Array BGA PACKAGES† GDP and ZDP BGA packages bottom viewBottom View Description Characteristics of the C6711D Processor Device characteristicsHardware Features Internal Clock C6711DDevice compatibility Digital Signal Processor Functional block and CPU DSP core diagramCPU DSP core description DA1 ST1DA2 ST2TMS320C6711D Memory Map Summary Memory map summaryMemory Block Description Block Size Bytes HEX Address Range Emif Registers Peripheral register descriptionsL2 Cache Registers HEX Address Range Acronym Register NameDevice Registers Interrupt Selector RegistersEdma Parameter RAM† HEX Address Range Acronym Register Name CommentsQuick DMA Qdma and Pseudo Registers† Edma RegistersGpio Registers PLL Controller RegistersHPI Registers HEX Address Range Acronym Register Name Comments Timer Timer 0 and Timer 1 RegistersMcBSP0 and McBSP1 Registers McBSP0 McBSP1Signal groups description CE2 CE3CE1 CE0GP7EXTINT7 GP6EXTINT6 GP5EXTINT5 GP4EXTINT4 GpioCLKOUT2/GP2 General-Purpose Input/Output Gpio PortDevice configurations at device reset Device ConfigurationsBOOTMODE‡ Configuration GDP/ZDP Functional Description PINCLKMODE0 Eksrc Devcfg register descriptionBIT # Name Description Terminal Functions Terminal Functions PIN SignalIPD Description Name GDP IPU‡ ZDP IPD Description Name GDP IPU‡ ZDP Jtag Emulation Resets and InterruptsUsed for transfer of data, address, and control IPD Description Name GDP IPU‡ ZDP HOST-PORT Interface HPILittle Endian HD12Decoded from the two lowest bits of the internal address Only one asserted during any external data accessEmif − ASYNCHRONOUS/SYNCHRONOUS Memory Control ¶ EA9 EA8 EA7 EA6 EA5 EA4 EA3 EA2 IPD Description Name GDP IPU‡ ZDP Emif − Address ¶Multichannel Buffered Serial Port 1 McBSP1 IPD Description Name GDP IPU‡ ZDP Emif − Data ¶GENERAL-PURPOSE INPUT/OUTPUT Gpio Module Multichannel Buffered Serial Port 0 McBSP0RSV IPU RSVRSV IPD Dvdd Name GDP ZDP Supply Voltage PinsCvdd Supply voltage See NoteGround Pins Description Name GDP ZDP Supply Voltage PinsVSS GNDVSS PIN Signal TYPE† Description Name GDP ZDP Ground PinsVSS GND Description Name GDP ZDP Ground PinsSoftware Development Tools Development supportHardware Development Tools Device and development-support tool nomenclature Device supportFully qualified production device Prefix Device Family Temperature Range Default 0 C to 90 CDevice Speed Range TechnologyDocumentation support Revision ID CPU CSR register descriptionPwrd PCC DCC Pgie GIECPU ID CPU CSR Register Bit Field DescriptionPCC Ccfg Register Bit Field Description Cache configuration Ccfg register descriptionL2MODE Interrupt sources and interrupt selector DSP Interrupt Default Selector Module ControlDSP Interrupts Interrupt Selector EventEdma Channels Edma module and Edma selectorEdma Selector ESEL3 Register 0x01A0 FF0C ESEL1 Register 0x01A0 FF04PLL and PLL controller Clkout Signals, Default Settings, and Control PLL Lock and Reset TimesEnabled or Disabled MIN TYP MAX UnitPLL Clock Frequency Ranges†‡ Clock SignalGDPA−167, ZDPA-167 PLL Control/Status Register Pllcsr Pllcsr Register 0x01B7 C100PLL Multiplier Control Register Pllm Pllm Register 0x01B7 C110DxEN Oscillator Divider 1 Register OSCDIV1 OSCDIV1 Register 0x01B7 C124OD1EN GP7 GP6 GP5 GP4 GP2 General-purpose input/output GpioDIR Power-down mode logic PD3 PD2 PD1 Pwrd Field of the CSR RegisterCharacteristics of the Power-Down Modes Power-supply sequencingSystem-level design considerations ModePower-supply design considerations Power-supply decouplingDvdd DSP Cvdd VSS GNDIeee 1149.1 Jtag compatibility statement Example Boards and Maximum Emif Speed Emif device speedEmif Data Lines Pins Where Data Present Emif big endian mode correctnessED3124 BE3 ED2316 BE2 ED158 BE1 ED70 BE0 Reset BootmodeMIN NOM MAX Unit Recommended operating conditions‡IOH IOZ Parameter Test Conditions MIN TYP MAX UnitParameter Measurement Information Signal transition levelsTester Pin Electronics Output Under Test= 0.3 tcmax† VIL max VUS max Ground AC transient rise/fall time specificationsTiming parameters and board routing analysis Board-Level Timings Example see Figure Control Signals † Output from DSPOutput from DSP Input and Output Clocks PLL Mode Bypass Mode UnitTiming requirements for Clkin †‡§ See FigureParameter GDPA-167Clkin CLKOUT3 GDPA-167 ZDPA−167 Timing requirements for ECLKIN† see Figure−200 −250Timing requirements for asynchronous memory cycles†‡§ Asynchronous Memory TimingSee −Figure AreCEx BE30 EA212 Address ED310 Read Data Setup = Strobe = Not ReadyAOE/SDRAS/SSOE † AWE/SDWE/SSWE † ArdyCEx BE30 EA212 Setup = Strobe = Not Ready Hold =AOE/SDRAS/SSOE † ARE/SDCAS/SSADS † AWE/SDWE/SSWE † Ardy Timing requirements for synchronous-burst Sram cycles† SYNCHRONOUS-BURST Memory TimingBE1 BE2 BE3 BE4 CEx BE30EA212 ED310 ARE/SDCAS/SSADS† AOE/SDRAS/SSOE† AWE/SDWE/SSWE†Timing requirements for synchronous Dram cycles† see Figure Synchronous Dram TimingEA2113 Bank EA112 Column EA12 ED310 Read EclkoutAOE/SDRAS/SSOE † ARE/SDCAS/SSADS† AWE/SDWE/SSWE† EA2113 Write EclkoutEA12 ED310 AOE/SDRAS/SSOE † ARE/SDCAS/SSADS † AWE/SDWE/SSWE †CEx BE30 EA2113 Bank Activate EA112 Row Address EA12 ED310 Actv EclkoutAOE/SDRAS/SSOE† ARE/SDCAS/SSADS† AWE/SDWE/SSWE† Dcab EclkoutCEx BE30 EA2113 Bank EA112 EA12 ED310 Deac EclkoutRefr Eclkout CEx BE30 EA212 EA12 ED310CEx BE30 EA212 MRS value ED310 MRS EclkoutTiming requirements for See Figure HOLD/HOLDA cycles† HOLD/HOLDA TimingHold Holda Eclkout Busreq Busreq TimingTiming requirements for reset†‡ see Figure Reset TimingCLKMODE0 = Clkin Eclkin Reset PhaseEmif Z Group† Emif Low Group† Group 2† Boot and Device Timing requirements for external interrupts† see Figure External Interrupt TimingEXTINT, NMI GDPA−167 HOST-PORT Interface TimingHstrobe Hstrobe HrdyHCS Hrdy HR/W Hhwil Hstrobe † HCS HasHas † HR/W Hhwil Hstrobe ‡ HCSHrdy HD150 input 1st halfword 2nd halfwordHD150 input 1st half-word 2nd half-word −1 ¶ Multichannel Buffered Serial Port Timing FSR int Clks ClkrBitn-1 ClkxClks Timing requirements for FSR when Gsync = 1 see FigureFSR external CLKR/X no need to resync CLKR/X needs resync Master Slave MIN MAXClkx FSX MASTER§ Slave MINBit Bitn-1 MASTER§ Slave MIN MAX GDPA-167 McBSP Timing as SPI Master or Slave Clkstp = 10b, Clkxp = McBSP Timing as SPI Master or Slave Clkstp = 11b, Clkxp = Timing requirements for timer inputs† Timer TimingTINPx TOUTx Timing requirements for Gpio inputs†‡ GENERAL-PURPOSE INPUT/OUTPUT Gpio Port TimingGPIx GPOx Jtag TEST-PORT Timing DTCKL-TDOV Delay time, TCK low to TDO validTiming requirements for Jtag test port see Figure TCK TDO TDI/TMS/TRSTThermal resistance characteristics S-PBGA package for GDP Package thermal resistance characteristicsThermal resistance characteristics S-PBGA package for ZDP Mechanical DataPackaging Information Orderable Device Status Package Pins Package Eco PlanMSL Peak Temp QtySeating Plane 4204396/A 04/02 GDP S-PBGA-N272Seating Plane 4204398/A 04/02 ZDP S-PBGA-N272Important Notice
Top Page Image Contents