This article is about ARM7 microcontroller cores. For the ARMv7 instruction set architecture, see ARM architecture.
ARM7 is a group of 32-bitRISCARM processor cores licensed by ARM Holdings for microcontroller use.[1] The ARM7 core family consists of ARM700, ARM710, ARM7DI, ARM710a, ARM720T, ARM740T, ARM710T, ARM7TDMI, ARM7TDMI-S, ARM7EJ-S. The ARM7TDMI and ARM7TDMI-S were the most popular cores of the family.
Since ARM7 cores were released from 1993 to 2001, they are no longer recommended for new IC designs; instead ARM Cortex-M or ARM Cortex-R cores are preferred.[1]
This generation introduced the Thumb 16-bit instruction set providing improved code density compared to previous designs. The most widely used ARM7 designs implement the ARMv4T architecture, but some implement ARMv3 or ARMv5TEJ. ARM7TDMI has 37 registers (31 GPR and 6 SPR). All these designs use a Von Neumann architecture,[citation needed] thus the few versions containing a cache do not separate data and instruction caches.
Some ARM7 cores are obsolete. One historically significant model, the ARM7DI[2] is notable for having introduced JTAG based on-chip debugging; the preceding ARM6 cores did not support it. The "D" represented a JTAG TAP for debugging; the "I" denoted an ICEBreaker debug module supporting hardware breakpoints and watchpoints, and letting the system be stalled for debugging. Subsequent cores included and enhanced this support.
It is a versatile processor designed for mobile devices and other low power electronics. This processor architecture is capable of up to 130 MIPS on a typical 0.13 μm process. The ARM7TDMI processor core implements ARM architecturev4T. The processor supports both 32-bit and 16-bit instructions via the ARM and Thumb instruction sets.
ARM licenses the processor to various semiconductor companies, which design full chips based on the ARM processor architecture.
ARM licenseedit
ARM Holdings neither manufactures nor sells CPU devices based on its own designs, but rather licenses the processor architecture to interested parties. ARM offers a variety of licensing terms, varying in cost and deliverables. To all licensees, ARM provides an integratable hardware description of the ARM core, as well as complete software development toolset and the right to sell manufactured silicon containing the ARM CPU.
Silicon customizationedit
Integrated device manufacturers (IDM) receive the ARM Processor IP as synthesizableRTL (written in Verilog). In this form, they have the ability to perform architectural level optimizations and extensions. This allows the manufacturer to achieve custom design goals, such as higher clock speed, very low power consumption, instruction set extensions, optimizations for size, debug support, etc. To determine which components have been included in a particular ARM CPU chip, consult the manufacturer datasheet and related documentation.
Coresedit
Year
ARM7 Cores
1993
ARM700
1994
ARM710
1994
ARM7DI
1994
ARM7TDMI
1995
ARM710a
1997
ARM710T
1997
ARM720T
1997
ARM740T
2001
ARM7TDMI-S
2001
ARM7EJ-S
The original ARM7 was based on the earlier ARM6 design and used the same ARMv3 instruction set. The ARM710 variant was used in a CPU module for the Acorn Risc PC, and the first ARM based System on a Chip designs ARM7100 and ARM7500 used this core.
ARM7TDMIedit
The ARM7TDMI (ARM7 + 16 bit Thumb + JTAGDebug + fast Multiplier + enhanced ICE) processor implements the ARMv4 instruction set. It was licensed for manufacture by an array of semiconductor companies. In 2009, it was one of the most widely used ARM cores, and is found in numerous deeply embedded system designs.It was used for the popular video game console GameBoy Advance
Texas Instruments licensed the ARM7TDMI, which was designed into the Nokia 6110, the first ARM-powered GSM phone.[3] This led to the popular series of Nokia phones using the processor, including the 3210 and 3310.[4]
The ARM7EJ-S (ARM7 + Enhanced + Jazelle - Synthesizable) is a version of the ARM7 implementing the ARMv5TE instruction set originally introduced with the more powerful ARM9E core.
^"ARM7DI Data Sheet"; Document Number ARM DDI 0027D; Issued: December 1994.
^Sakr, Sharif. "ARM co-founder John Biggs". Engadget. Retrieved 23 December 2011. [...] the ARM7-TDMI was licensed by Texas Instruments and designed into the Nokia 6110, which was the first ARM-powered GSM phone.
^Walshe, Ben (13 March 2018). "A look at devices that have shaped mobile gaming". Arm Community. Retrieved 12 September 2019.
^"Remembering the Sega Dreamcast". 29 September 2009.
^Shiro Hagiwara; Ian Oliver (1999). "Sega Dreamcast: Creating a Unified Entertainment World". IEEE Micro. 19 (6): 29–35. doi:10.1109/40.809375.
^ ab"Dreamcast/ Dev.Box System Architecture" (PDF). 2 September 1999.
Instructions: Thumb (1), ARM and Thumb-2 (2), Vector Floating Point (3)
Opcodes: Thumb (1, 2), ARM (3, 4), GNU Assembler Directives 5
Differences between ARM7TDMI and ARM7TDMI-S
A starter's tutorial on ARM assembly
- schematics, CAD files, header files
October 28, 2023
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This article is about ARM7 microcontroller cores For the ARMv7 instruction set architecture see ARM architecture ARM7 is a group of 32 bit RISC ARM processor cores licensed by ARM Holdings for microcontroller use 1 The ARM7 core family consists of ARM700 ARM710 ARM7DI ARM710a ARM720T ARM740T ARM710T ARM7TDMI ARM7TDMI S ARM7EJ S The ARM7TDMI and ARM7TDMI S were the most popular cores of the family ARM7General informationDesigned byARM HoldingsArchitecture and classificationInstruction setARM 32 bit ARMv3 ARM7TArchitecture and classificationInstruction setARM 32 bit Thumb 16 bit ARMv4T ARM7EJ SArchitecture and classificationInstruction setARM 32 bit Thumb 16 bit Jazelle 8 bit ARMv5TEJ Since ARM7 cores were released from 1993 to 2001 they are no longer recommended for new IC designs instead ARM Cortex M or ARM Cortex R cores are preferred 1 Contents 1 Overview 1 1 ARM license 1 2 Silicon customization 2 Cores 2 1 ARM7TDMI 2 2 ARM7EJ S 3 Chips 3 1 ARM7TDMI or ARM7TDMI S core 3 2 Unreferenced ARM7 core 4 Notable uses 5 See also 6 References 7 External linksOverview editSee also ARM architecture and List of ARM cores This generation introduced the Thumb 16 bit instruction set providing improved code density compared to previous designs The most widely used ARM7 designs implement the ARMv4T architecture but some implement ARMv3 or ARMv5TEJ ARM7TDMI has 37 registers 31 GPR and 6 SPR All these designs use a Von Neumann architecture citation needed thus the few versions containing a cache do not separate data and instruction caches Some ARM7 cores are obsolete One historically significant model the ARM7DI 2 is notable for having introduced JTAG based on chip debugging the preceding ARM6 cores did not support it The D represented a JTAG TAP for debugging the I denoted an ICEBreaker debug module supporting hardware breakpoints and watchpoints and letting the system be stalled for debugging Subsequent cores included and enhanced this support It is a versatile processor designed for mobile devices and other low power electronics This processor architecture is capable of up to 130 MIPS on a typical 0 13 mm process The ARM7TDMI processor core implements ARM architecture v4T The processor supports both 32 bit and 16 bit instructions via the ARM and Thumb instruction sets ARM licenses the processor to various semiconductor companies which design full chips based on the ARM processor architecture ARM license edit ARM Holdings neither manufactures nor sells CPU devices based on its own designs but rather licenses the processor architecture to interested parties ARM offers a variety of licensing terms varying in cost and deliverables To all licensees ARM provides an integratable hardware description of the ARM core as well as complete software development toolset and the right to sell manufactured silicon containing the ARM CPU Silicon customization edit Integrated device manufacturers IDM receive the ARM Processor IP as synthesizable RTL written in Verilog In this form they have the ability to perform architectural level optimizations and extensions This allows the manufacturer to achieve custom design goals such as higher clock speed very low power consumption instruction set extensions optimizations for size debug support etc To determine which components have been included in a particular ARM CPU chip consult the manufacturer datasheet and related documentation Cores editYear ARM7 Cores1993 ARM7001994 ARM7101994 ARM7DI1994 ARM7TDMI1995 ARM710a1997 ARM710T1997 ARM720T1997 ARM740T2001 ARM7TDMI S2001 ARM7EJ SThe original ARM7 was based on the earlier ARM6 design and used the same ARMv3 instruction set The ARM710 variant was used in a CPU module for the Acorn Risc PC and the first ARM based System on a Chip designs ARM7100 and ARM7500 used this core ARM7TDMI edit The ARM7TDMI ARM7 16 bit Thumb JTAG Debug fast Multiplier enhanced ICE processor implements the ARMv4 instruction set It was licensed for manufacture by an array of semiconductor companies In 2009 it was one of the most widely used ARM cores and is found in numerous deeply embedded system designs It was used for the popular video game console GameBoy AdvanceTexas Instruments licensed the ARM7TDMI which was designed into the Nokia 6110 the first ARM powered GSM phone 3 This led to the popular series of Nokia phones using the processor including the 3210 and 3310 4 The ARM7TDMI S variant is the synthesizable core ARM7EJ S edit The ARM7EJ S ARM7 Enhanced Jazelle Synthesizable is a version of the ARM7 implementing the ARMv5TE instruction set originally introduced with the more powerful ARM9E core Chips edit nbsp Yamaha AICA sound processor in Dreamcast game console 5 6 7 ARM7TDMI or ARM7TDMI S core edit Analog Devices AD6720 used in LG KG130 150 AD6724 used in LG KP130 135 AD6726 used in LG KP170 175 Atmel AT91M 8 AT91R 8 AT91SAM7L 8 AT91SAM7S SE 9 AT91SAM7X XC 10 see AT91SAM7 STMicroelectronics STR7 11 Alcatel Microelectronics STMicroelectronics 12 ALCATEL 2840 MTC 20276 INTQ 13 MTC 20277 INTT 14 used in Alcatel One Touch 30x BE4 PortalPlayer PP5002 PP5022 15 used in iPods 16 NXP LPC2100 LPC2200 LPC2300 LPC2400 17 Unreferenced ARM7 core edit nbsp The Make Controller Kit with an Atmel AT91SAM7X256 ARM microcontrollerADMtek ADM8628 Atmel AT91CAP7 Cirrus Logic CL PS7110 Mediatek MT2502 ARM7 EJ STM NetSilicon NS7520 Nuvoton NUC500 NUC700 LH7 PortalPlayer 5002 5003 5020 5021 TDF 5022 5024 SOCs dual ARM7TDI cores Samsung S3C46Q0X01 EE8X S3C44B0X Yamaha AICA ARM7DI sound processor with DSP 7 Notable uses editNokia 6110 first GSM phone to use an ARM processor Dreamcast home video game console audio coprocessor PlayStation 2 home video game console security handler Game Boy Advance handheld video game console Nintendo DS successor to the Game Boy Advance Zune HD portable media player Roomba robotic vacuum cleaner Lego Mindstorms NXT 2nd generation robotics toy line from Lego iPod the first 5 generations of the iPod Classic as well as the Mini and first Nano used dual core ARM7TDMI processors See also edit nbsp Electronics portalARM architecture List of ARM microarchitectures JTAG Real time operating system Comparison of real time operating systemsReferences edit a b ARM7 Family Webpage ARM Holdings ARM7DI Data Sheet Document Number ARM DDI 0027D Issued December 1994 Sakr Sharif ARM co founder John Biggs Engadget Retrieved 23 December 2011 the ARM7 TDMI was licensed by Texas Instruments and designed into the Nokia 6110 which was the first ARM powered GSM phone Walshe Ben 13 March 2018 A look at devices that have shaped mobile gaming Arm Community Retrieved 12 September 2019 Remembering the Sega Dreamcast 29 September 2009 Shiro Hagiwara Ian Oliver 1999 Sega Dreamcast Creating a Unified Entertainment World IEEE Micro 19 6 29 35 doi 10 1109 40 809375 a b Dreamcast Dev Box System Architecture PDF 2 September 1999 a b c Atmel Legacy ARM Based Solutions Atmel SAM7S SE ARM7 Microcontrollers Atmel SAM7X XC ARM7 Microcontrollers Atmel STR7 ARM7 Microcontrollers STMicroelectronics Case No COMP M 2820 PDF ec europa eu 24 June 2002 Retrieved 20 January 2019 Alcatel Microelectronics MTC 20276 INTQ Data Sheet PDF datasheet datasheetarchive com October 1998 Retrieved 20 January 2019 Alcatel Microelectronics MTC 20277 INTT Data Sheet and User Manual PDF datasheet datasheetarchive com October 1998 Retrieved 20 January 2019 TargetSpecificOptimization www rockbox org Retrieved 11 January 2019 Ipod nano Generations ipod touch generations www ipodlinux org Retrieved 11 January 2019 LPC2109 2119 2129 datasheet PDF 14 June 2011 Retrieved 10 June 2020 External links edit nbsp Wikimedia Commons has media related to wbr ARM7 ARM7 official website Architecture Reference Manual ARMv4 5 6 Core Reference Manuals ARM7DIARM7EJ S ARM7TDMI ARM7TDMI S ARM710a ARM710T ARM720T ARM740T Instructions Thumb 1 ARM and Thumb 2 2 Vector Floating Point 3 Opcodes Thumb 1 2 ARM 3 4 GNU Assembler Directives 5 Differences between ARM7TDMI and ARM7TDMI S ARM Assembly Intro A starter s tutorial on ARM assembly ARM7TDMI Microcontroller Development Resources schematics CAD files header files Retrieved from https en wikipedia org w index php title ARM7 amp oldid 1180097790 ARM7TDMI, wikipedia, wiki, book, books, library,
