ARM system-on-chip architecture by Steve Furber

By Steve Furber

The way forward for the pc and communications industries is converging on cellular info home equipment - telephones, PDAs, laptops and different units. The ARM is on the middle of this pattern, top the way in which in system-on-chip (SoC) improvement and turning into the processor center of selection for plenty of embedded purposes. System-on-chip know-how is altering the way in which we use pcs, however it additionally units designers the very hard challenge of having a posh SoC layout correct first time. ARM System-on-Chip structure introduces the strategies and methodologies hired in designing a system-on-chip dependent round a microprocessor middle, and in designing the center itself. wide illustrations, in line with the ARM, supply sensible substance to the layout rules set out within the booklet, reinforcing the reader's figuring out of ways and why SoCs and microprocessors are designed as they are.ARM System-on-Chip structure: · offers and discusses the foremost problems with system-on-chip layout, together with reminiscence hierarchy, caches, reminiscence administration, on-chip buses, on-chip debug and creation attempt · presents an summary of the ARM processor kin, allowing the reader to make a decision which ARM is better for the task in hand · describes the ARM and Thumb programming versions, permitting the dressmaker to start to increase purposes · covers the entire most up-to-date ARM items and advancements, together with StrongARM, the ARM9 and ARM10 sequence of cores, and the ARM-based SoC parts on the middle of Ericsson's Bluetooth know-how, the Psion sequence five PDA and Samsung's SGH2400 GSM handset · comprises info at the AMULET asynchronous ARM cores and the AMULET3H asynchronous SoC subsystemARM System-on-Chip structure is a vital guide for system-on-chip designers utilizing ARM processor cores and engineers operating with the ARM. it might probably even be used as a direction textual content for undergraduate and masters scholars of computing device technological know-how, desktop engineering and electric engineering.

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4), the program counter (r15) and the current program status register (CPSR) need be considered. The remaining registers are used only for system-level programming and for handling exceptions (for example, interrupts). 1 ARM's visible registers. 2 The Current Program Status Register (CPSR) ARM CPSR format. The CPSR is used in user-level programs to store the condition code bits. These bits are used, for example, to record the result of a comparison operation and to control whether or not a conditional branch is taken.

2 on page 12 to support indexed addressing. If you have access to a hardware simulator, test your design. 3 Estimate the performance benefit of a single-cycle delayed branch. A delayed branch allows the instruction following the branch to be executed whether or not the branch is taken. The instruction after the branch is in the 'delay slot'. 13 on page 22; ignore register hazards; assume all delay slots can be filled (most single delay slots can be filled). If there is a dedicated branch target adder in the decode stage, a branch has a 1-cycle delayed effect, so a single delay slot removes all wasted cycles.

The ARM Architecture Summary of chapter contents The ARM processor is a Reduced Instruction Set Computer (RISC). The RISC concept, as we saw in the previous chapter, originated in processor research programmes at Stanford and Berkeley universities around 1980. In this chapter we see how the RISC ideas helped shape the ARM processors. The ARM was originally developed at Acorn Computers Limited of Cambridge, England, between 1983 and 1985. It was the first RISC microprocessor developed for commercial use and has some significant differences from subsequent RISC architectures.

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