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| DP80390CPU Pipelined High Performance 8-bit Microcontroller ver 3.10 OVERVIEW DP80390CPU is an ultra high performance, speed optimized soft core of a singlechip 8-bit embedded controller dedicated for operation with fast (typically on-chip) and slow (off-chip) memories. The core has been designed with a special concern about performance to power consumption ratio. This ratio is extended by an advanced power management unit PMU. DP80390CPU soft core is 100% binarycompatible with the industry standard 80390 & 8051 8-bit microcontroller. There are two configurations of DP80390CPU: Harward where internal data and program buses are separated, and von Neumann with common program and external data bus. DP80390CPU has Pipelined RISC architecture 10 times faster compared to standard architecture and executes 85-200 million instructions per second. This performance can also be exploited to great advantage in low power applications where the core can be clocked over ten times more slowly than the original implementation for no performance penalty. DP80390CPU is delivered with fully automated testbench and complete set of tests allowing easy package validation at each stage of SoC design flow. CPU FEATURES 100% software compatible with industry standard 80390 & 8051 LARGE mode - 8051 instruction set FLAT mode - 80390 instruction set Pipelined RISC architecture enables to execute instructions 10 times faster compared to standard 8051 24 times faster multiplication 12 times faster addition Up to 256 bytes of internal (on-chip) Data Memory Up to 16M bytes of linear Program Memory 64 kB of internal (on-chip) Program Memory 16 MB external (off-chip) Program Memory Up to 16M bytes of external (off-chip) Data Memory User programmable Program Memory Wait States solution for wide range of memories speed User programmable External Data Memory Wait States solution for wide range of memories speed De-multiplexed Address/Data bus to allow easy connection to memory http://www.DigitalCoreDesign.com http://www.dcd.pl All trademarks mentioned in this document are trademarks of their respective owners. Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. Dedicated signal for Program Memory writes. Interface for additional Special Function Registers Fully synthesizable, static synchronous design with positive edge clocking and no internal tri-states Scan test ready 2.0 GHz virtual clock frequency in a 0.35u technological process CONFIGURATION The following parameters of the DP80390CPU core can be easy adjusted to requirements of dedicated application and technology. Configuration of the core can be prepared by effortless changing appropriate constants in package file. There is no need to change any parts of the code. * * * * Internal Program Memory type Internal Program ROM Memory size Internal Program RAM Memory size Internal Program Memory fixed size - synchronous - asynchronous 0 - 64kB 0 - 64kB - true - false subroutines location PERIPHERALS DoCDTM debug unit Processor execution control Run Halt Step into instruction Skip instruction * Interrupts * Power Management Mode * Stop mode * DoCD debug unit Read-write all processor contents Program Counter (PC) Program Memory Internal (direct) Data Memory Special Function Registers (SFRs) External Data Memory - used - unused - used - unused - used - unused Hardware execution breakpoints Program Memory Internal (direct) Data Memory Special Function Registers (SFRs) External Data Memory Besides mentioned above parameters all available peripherals and external interrupts can be excluded from the core by changing appropriate constants in package file. DELIVERABLES Source code: VHDL Source Code or/and VERILOG Source Code or/and Encrypted, or plain text EDIF netlist VHDL & VERILOG test bench environment Active-HDL automatic simulation macros ModelSim automatic simulation macros Tests with reference responses Technical documentation Installation notes HDL core specification Datasheet Synthesis scripts Example application Technical support IP Core implementation support 3 months maintenance Hardware breakpoints activated at a certain Program address (PC) Address by any write into memory Address by any read from memory Address by write into memory a required data Address by read from memory a required data Three wire communication interface Power Management Unit Power management mode Switchback feature Stop mode Interrupt Controller 2 priority levels 2 external interrupt sources Delivery the IP Core updates, minor and major versions changes Delivery the documentation updates Phone & email support http://www.DigitalCoreDesign.com http://www.dcd.pl All trademarks mentioned in this document are trademarks of their respective owners. Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. LICENSING Comprehensible and clearly defined licensing methods without royalty fees make using of IP Core easy and simply. Single Design license allows use IP Core in single FPGA bitstream and ASIC implementation. Unlimited Designs, One Year licenses allow use IP Core in unlimited number of FPGA bitstreams and ASIC implementations. In all cases number of IP Core instantiations within a design, and number of manufactured chips are unlimited. There is no time restriction except One Year license where time of use is limited to 12 months. nal Data Memory can be implemented as Single-Port synchronous RAM. EXTERNAL DATA MEMORY: The DP80390CPU soft core can address up to 16 MB of External Data Memory. Extra DPX (Data Pointer eXtended) register is used for segments swapping. USER SPECIAL FUNCTION REGISTERS: Up to 104 External (user) Special Function Registers (ESFRs) may be added to the DP80390CPU design. ESFRs are memory mapped into Direct Memory between addresses 80 hex and FF hex in the same manner as core SFRs and may occupy any address that is not occupied by a core SFR. WAIT STATES SUPPORT: The DP80390CPU soft core is dedicated for operation with wide range of Program and Data memories. Slow Program and External Data memory may assert a memory Wait signal to hold up CPU activity. Single Design license for VHDL, Verilog source code called HDL Source Encrypted, or plain text EDIF called Netlist One Year license for Encrypted Netlist only Unlimited Designs license for HDL Source Netlist Upgrade from HDL Source to Netlist Single Design to Unlimited Designs DESIGN FEATURES PROGRAM MEMORY: The DP80390 soft core is dedicated for operation with Internal and External Program Memory. It maximal linear size is equal to 16 MB. Internal Program Memory can be implemented as: ROM located in address range between 0000h / (ROMsize-1) RAM located in address range between (64kB-RAMsize) / FFFFh External Program Memory can be implemented as ROM or RAM located in address range between ROMsize / 16 MB excluding area occupied by RAMsize. INTERNAL DATA MEMORY: The DP80390CPU can address Internal Data Memory of up to 256 bytes The Interhttp://www.DigitalCoreDesign.com http://www.dcd.pl All trademarks mentioned in this document are trademarks of their respective owners. Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. SYMBOL port0i(7:0) port1i(7:0) port2i(7:0) port3i(7:0) port0o(7:0) port1o(7:0) port2o(7:0) port3o(7:0) BLOCK DIAGRAM Opcode decoder prgromdata(7:0) prgaddr(15:0) prgramdata(7:0) prgdatao(7:0) prgramwr xdatai(7:0) ready iprgromsize(2:0) iprgramsize(2:0) xaddr(23:0) xdatao(7:0) xdataz xprgrd xprgwr xdatard xdatawr ramaddr(7:0) ramdatao(7:0) ramwe ramoe sfraddr(6:0) sfrdatao(7:0) sfroe sfrwe stop pmm prgramdata(7:0) prgromdata(7:0) prgaddr(15:0) prgdatao(7:0) prgramwr xaddr(23:0) xdatao(7:0) xdatai(7:0) xdataz ready xprgrd xprgwr xdatard xdatawr iprgromsize(2:0) iprgramsize(2:0) ramaddr(7:0) ramdatao(7:0) ramdatai(7:0) ramwe ramoe sfraddr(6:0) sfrdatao(7:0) sfrdatao(7:0) sfroe sfrwe clk reset Program memory interface External memory interface Interrupt controller int0 int1 Control Unit ramdatai(7:0) Power Management Unit stop pmm Internal data memory interface DoCDTM Debug Unit docddatai docddatao docdclk sfrdatai(7:0) User SFR's interface ALU PINS DESCRIPTION PIN clk reset port0i[7:0] port1i[7:0] port2i[7:0] port3i[7:0] iprgramsize[2:0] iprgromsize[2:0] prgramdata[7:0] prgromdata[7:0] xdatai[7:0] ready ramdatai[7:0] sfrdatai[7:0] int0 int1 docddatai port0o[7:0] port1o[7:0] port2o[7:0] port3o[7:0] prgaddr[15:0] TYPE input input input input input input input input input input input input input input input input input DESCRIPTION Global clock Global reset Port 0 input Port 1 input Port 2 input Port 3 input Size of on-chip RAM CODE Size of on-chip ROM CODE Data bus from int. RAM prog. memory Data bus from int. ROM prog. memory Data bus from external memories External memory data ready Data bus from internal data memory Data bus from user SFR's External interrupt 0 External interrupt 1 DoCDTM data input reset clk output Port 0 output output Port 1 output output Port 2 output output Port 3 output output Internal program memory address bus All trademarks mentioned in this document are trademarks of their respective owners. http://www.DigitalCoreDesign.com http://www.dcd.pl Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. prgdatao[7:0] prgramwr xaddr[23:0] xdatao[7:0] xdataz xprgrd xprgwr xramrd xramwr ramaddr[7:0] ramdatao[7:0] ramoe ramwe sfraddr[6:0] sfrdatao[7:0] sfroe sfrwe docddatao docdclk pmm stop output Data bus for internal program memory output Internal program memory write output Address bus for external memories output Data bus for external memories output Turn xdata bus into `Z' state output External program memory read output External program memory write output External data memory read output External data memory write output Internal Data Memory address bus output Data bus for internal data memory output Internal data memory output enable output Internal data memory write enable output Address bus for user SFR's output Data bus for user SFR's output User SFR's read enable output User SFR's write enable output DoCDTM data output output DoCDTM clock line output Power management mode indicator output Stop mode indicator feature is called Program Memory Wait States, and allows core to work with different speed program memories. Internal Data Memory Interface - Internal Data Memory interface controls access into the internal 256 bytes memory. It contains 8-bit Stack Pointer (SP) register and related logic. User SFRs Interface - Special Function Registers interface controls access to the special registers. It contains standard and used defined registers and related logic. User defined external devices can be quickly accessed (read, written, modified) using all direct addressing mode instructions. Interrupt Controller - Interrupt control module is responsible for the interrupt manage system for the external and internal interrupt sources. It contains interrupt related registers such as Interrupt Enable (IE), Interrupt Priority (IP) and (TCON) registers. Power Management Unit - Block contains advanced power saving mechanisms with switchback feature, allowing external clock control logic to stop clocking (Stop mode) or run core in lower clock frequency (Power Management Mode) to significantly reduce power consumption. Switchback feature allows UARTs, and interrupts to be processed in full speed mode if enabled. It is very desired when microcontroller is planned to use in portable and power critical applications. DoCDTM Debug Unit - it's a real-time hardware debugger provides debugging capability of a whole SoC system. In contrast to other onchip debuggers DoCDTM provides non-intrusive debugging of running application. It can halt, run, step into or skip an instruction, read/write any contents of microcontroller including all registers, internal, external, program memories, all SFRs including user defined peripherals. Hardware breakpoints can be set and controlled on program memory, internal and external data memories, as well as on SFRs. Hardware breakpoint is executed if any write/read occurred at particular address with certain data pattern or without pattern. The DoCDTM system includes three-wire interface and complete set of tools to communicate and work with core in real time debugging. It is built as scalable unit and some features can be turned off to save silicon and reduce power consumption. A special care on power consumption has been taken, and when debugger is not used it is http://www.DigitalCoreDesign.com http://www.dcd.pl UNITS SUMMARY ALU - Arithmetic Logic Unit performs the arithmetic and logic operations during execution of an instruction. It contains accumulator (ACC), Program Status Word (PSW), (B) registers and related logic such as arithmetic unit, logic unit, multiplier and divider. Opcode Decoder - Performs an instruction opcode decoding and the control functions for all other blocks. Control Unit - Performs the core synchronization and data flow control. This module is directly connected to Opcode Decoder and manages execution of all microcontroller tasks. Program Memory Interface - Contains Program Counter (PC) and related logic. It performs the instructions code fetching. Program Memory can be also written. This feature allows usage of a small boot loader loading new program into ROM, RAM, EPROM or FLASH EEPROM storage via UART, SPI, I2C or DoCDTM module. External Memory Interface - Contains memory access related registers such as Data Page High (DPH), Data Page Low (DPL) and Data Pointer eXtended (DPX) registers. It performs the external Program and Data Memory addressing and data transfers. Program fetch cycle length can be programmed by user. This All trademarks mentioned in this document are trademarks of their respective owners. Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. automatically switched in power save mode. Finally whole debugger is turned off when debug option is no longer used. 0xFFFFFF Off chip Memory (implemented as ROM, SRAM or FLASH) PROGRAM CODE SPACE IMPLEMENTATION The figure below shows an example Program Memory space implementation in systems with DP80390CPU Microcontroller core. The On-chip Program Memory located in address space between 0kB and 1kB is typically used for BOOT code with system initialization functions. This part of the code is typically implemented as ROM. The On-chip Program Memory located in address space between 60kB and 64kB is typically used for timing critical part of the code e.g. interrupt subroutines, arithmetic functions etc. This part of the code is typically implemented as RAM and can be loaded by the BOOT code during initialization phase from Off-chip memory or through RS232 interface from external device. From the two mentioned above spaces program code is executed without wait-states and can achieve a top performance up to 200 million instructions per second (many instructions executed in one clock cycle). The Off-chip Program Memory located in address space between 1kB and 60kB, and above 64 kB is typically used for main code and constants. This part of the code is usually implemented as ROM, SRAM or FLASH device. Because of relatively long access time the program code executed from mentioned above devices must be fetched with additional Wait-States. Number of required Wait-States depends on memory access time and DP80390CPU clock frequency. In most cases the proper number of WaitStates cycles is between 2-5. The READY pin can be also dynamically modulated e.g. by SDRAM controller. 0x00FFFF 0x00F000 On chip Memory (implemented as RAM) Off chip Memory (implemented as ROM, SRAM or FLASH) 0x000400 0x000000 On-chip Memory (implemented as ROM) The figure below shows a typical Program Memories connections in system with DP80390CPU Microcontroller core. prgramdatai prgdatao prgramwr prgaddr 10 prgromdata i 8 ASIC or FPGA chip 8 Off-chip Memory 24 (implemented as FLASH, or SRAM) eg. 2-5 Wait-State access 8 8 12 On-chip Memory (implemented as RAM) 0 Wait-State access On-chip Memory (implemented as ROM) 0 Wait-State access DP80390CPU xdatai xdatao xaddr xprgrd xprgwr ready Wait-States manager The described above implementation should be treated as an example. All Program Memory spaces are fully configurable. For timing-critical applications whole program code can be implemented as on-chip ROM and (or) RAM and executed without Wait-States, but for some other applications whole program code can be implemented as off-chip ROM or FLASH and executed with required number Wait-State cycles. All trademarks mentioned in this document are trademarks of their respective owners. http://www.DigitalCoreDesign.com http://www.dcd.pl Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. PERFORMANCE The following tables give a survey about the Core area and performance in ASICs Devices (CPU features and peripherals have been included): Device 0.25u typical 0.25u typical Optimization area speed Fmax 100 MHz 250 MHz 43700 45000 40000 35000 30000 25000 20000 15000 10000 5000 0 80C51 (12MHz) DP80390CPU (250MHz) Core performance in ASIC devices 268 1550 For a user the most important is application speed improvement. The most commonly used arithmetic functions and theirs improvement are shown in table below. Improvement was computed as {80C51 clock periods} divided by {DP80390CPU clock periods} required to execute an identical function. More details are available in core documentation. Function 8-bit addition (immediate data) 8-bit addition (direct addressing) 8-bit addition (indirect addressing) 8-bit addition (register addressing) 8-bit subtraction (immediate data) 8-bit subtraction (direct addressing) 8-bit subtraction (indirect addressing) 8-bit subtraction (register addressing) 8-bit multiplication 8-bit division 16-bit addition 16-bit subtraction 16-bit multiplication 32-bit addition 32-bit subtraction 32-bit multiplication Average speed improvement: Improvement 9,00 9,00 9,00 12,00 9,00 9,00 9,00 12,00 16,00 9,60 12,00 12,00 13,60 12,00 12,00 12,60 11,12 80C310 (33MHz) Area utilized by the each unit of DP80390CPU core in vendor specific technologies is summarized in table below. Component CPU* Interrupt Controller Power Management Unit Total area Area [Gates] [FFs] 6500 350 50 6900 315 40 5 360 *CPU - consisted of ALU, Opcode Decoder, Control Unit, Program & Internal & External Memory Interfaces, User SFRs Interface Core components area utilization Dhrystone Benchmark Version 2.1 was used to measure Core performance. The following table gives a survey about the DP80390CPU performance in terms of Dhrystone/sec and VAX MIPS rating. Device 80C51 80C310 DP80390CPU Target 0.25u Clock frequency 12 MHz 33 MHz 250 MHz Dhry/sec (VAX MIPS) 268 (0.153) 1550 (0.882) 43700 (24.872) Core performance in terms of Dhrystones All trademarks mentioned in this document are trademarks of their respective owners. http://www.DigitalCoreDesign.com http://www.dcd.pl Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. The main features of each DP80390 family member have been summarized in table below. It gives a briefly member characterization helping user to select the most suitable IP Core for its application. User can specify its own peripheral set (including listed below and the others) and requests the core modifications. Architecture speed grade Program Memory space Stack space size on-chip ROM on-chip RAM Power Management Unit Internal Data Memory space External Data Memory space External Data / Program Memory Wait States Compare/Capture Interrupt sources Interface for additional SFRs Timer/Counters Interrupt levels Master I2C Bus Controller Slave I2C Bus Controller Data Pointers Design DP80390CPU DP80390 DP80390XP 10 10 10 64k 64k 16M 256 256 16M 64k 64k 16M 256 256 16M 64k 64k 16M 256 256 16M 2 5 15 2 2 2 1 1 2 2 3 1 2 4 4 - - - - - DP80390 family of High Performance Microcontroller Cores The main features of each DP8051 family member have been summarized in table below. It gives a briefly member characterization helping user to select the most suitable IP Core for its application. User can specify its own peripheral set (including listed below and the others) and requests the core modifications. Architecture speed grade Program Memory space Stack space size on-chip ROM on-chip RAM Power Management Unit Internal Data Memory space External Data Memory space External Data / Program Memory Wait States Compare/Capture Interrupt sources Interface for additional SFRs Timer/Counters Interrupt levels Master I C Bus Controller Slave I2C Bus Controller Data Pointers Design off-chip DP8051CPU DP8051 DP8051XP 10 10 10 64k 64k 64k 256 256 16M 64k 64k 64k 256 256 16M 64k 64k 64k 256 256 16M 2 5 15 2 2 2 1 1 2 2 3 1 2 4 4 - - - - - DP8051 family of High Performance Microcontroller Cores All trademarks mentioned in this document are trademarks of their respective owners. http://www.DigitalCoreDesign.com http://www.dcd.pl Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. Fixed Point Coprocessor Floating Point Coprocessor - Watchdog I\O Ports UART 2 SPI Fixed Point Coprocessor Floating Point Coprocessor - Watchdog I\O Ports off-chip UART SPI CONTACTS For any modification or special request contact to DCD. Headquarters: Wroclawska 94 41-902 Bytom, POLAND e-mail: iinffo@dcd..pll n o@dcd p tel. fax : +48 32 282 82 66 : +48 32 282 74 37 Field Office: Texas Research Park 14815 Omicron Dr. suite 100 San Antonio, TX 78245, USA n oUS@dcd p e-mail: iinffoUS@dcd..pll tel. fax : +1 210 422 8268 : +1 210 679 7511 Distributors: Please check htttp::///www..dcd..pll//aparrttn..php h p www dcd p apa n php All trademarks mentioned in this document are trademarks of their respective owners. http://www.DigitalCoreDesign.com http://www.dcd.pl Copyright 1999-2003 DCD - Digital Core Design. All Rights Reserved. |
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