By Lars Wehmeyer
Pace advancements in reminiscence platforms haven't saved velocity with the rate advancements of processors, resulting in embedded platforms whose functionality is proscribed through the reminiscence. This publication provides layout concepts for speedy, energy-efficient and timing-predictable reminiscence platforms that in attaining excessive functionality and occasional power intake. additionally, using scratchpad thoughts considerably improves the timing predictability of the complete procedure, resulting in tighter worst case execution time bounds.
Read or Download Fast, Efficient and Predictable Memory Accesses: Optimization Algorithms for Memory Architecture Aware Compilation PDF
Similar microprocessors & system design books
Marketplace call for for microprocessor functionality has stimulated persevered scaling of CMOS via a succession of lithography generations. Quantum mechanical boundaries to persisted scaling have gotten conveniently obvious. partly Depleted Silicon-on-Insulator (PD-SOI) know-how is rising as a promising technique of addressing those boundaries.
The publication is split into 4 significant components. half I covers HDL constructs and synthesis of easy electronic circuits. half II offers an outline of embedded software program improvement with the emphasis on low-level I/O entry and drivers. half III demonstrates the layout and improvement of and software program for a number of complicated I/O peripherals, together with PS2 keyboard and mouse, a picture video controller, an audio codec, and an SD (secure electronic) card.
Traditional on-chip conversation layout usually use ad-hoc methods that fail to satisfy the demanding situations posed by means of the next-generation MultiCore platforms on-chip (MCSoC) designs. those significant demanding situations contain wiring hold up, predictability, different interconnection architectures, and tool dissipation. A Network-on-Chip (NoC) paradigm is rising because the answer for the issues of interconnecting dozens of cores right into a unmarried approach on-chip.
This thoroughly up to date moment variation of MICROCONTROLLERS: FROM meeting LANGUAGE TO C utilizing THE PIC24 family members covers meeting language, C programming, and interfacing for the Microchip PIC24 relations, a lately up to date microcontroller relatives from Microchip. interfacing themes contain parallel port utilization, analog-to-digital conversion, digital-to-analog conversion, the serial peripheral bus (SPI), the inter-integrated circuit bus (I2C), asynchronous serial verbal exchange, and timers.
Additional info for Fast, Efficient and Predictable Memory Accesses: Optimization Algorithms for Memory Architecture Aware Compilation
G. multiplication operations, depending on the hardware support provided). The ARM7 architecture provides a three-stage pipeline consisting of the stages fetch, decode and execute. A single instruction therefore requires at least three cycles to pass through the pipeline. Assuming a ﬁlled pipeline and a standard ALU operation, one instruction can be executed per cycle. A complete overview over the instruction cycle timing of the ARM7TDMI processor can be obtained from the reference manual [ARM01].
For this reason, it was possible to study a wide range of varying cache conﬁgurations. To conclude this section, a short overview over possible design parameters of caches is given: • • • Split or uniﬁed caches: In a split cache architecture, instructions and data do not share the same cache. Split caches in general show superior performance compared to their uniﬁed counterparts since accesses to both instructions and data usually show a high degree of locality. However, if sequential instruction fetches are interrupted by data accesses, this potential locality is lost and data and instructions may evict each other.
E. when the input logic level changes. Due to the diﬀerent switching times of nMOS and pMOS transistors, there is a short time when both transistors are conductive, leading to the short circuit current Isc to ﬂow between the supply voltage Vdd and ground Gnd. Finally, the capacitance on the output, shown as Cload in the ﬁgure, has to be driven whenever the inverter output changes its value. e. switching) circuits. Short circuit power can consume up to 30% of the total energy budget if the circuit is active and if the transition times of the transistors are long [Syn96].
Fast, Efficient and Predictable Memory Accesses: Optimization Algorithms for Memory Architecture Aware Compilation by Lars Wehmeyer