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CY8C5866AXI-LP021 Datasheet(PDF) 11 Page - Cypress Semiconductor |
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CY8C5866AXI-LP021 Datasheet(HTML) 11 Page - Cypress Semiconductor |
11 / 122 page PSoC® 5LP: CY8C58LP Family Datasheet Document Number: 001-84932 Rev. *C Page 11 of 122 4. CPU 4.1 ARM Cortex-M3 CPU The CY8C58LP family of devices has an ARM Cortex-M3 CPU core. The Cortex-M3 is a low-power 32-bit three-stage pipelined Harvard-architecture CPU that delivers 1.25 DMIPS/MHz. It is intended for deeply embedded applications that require fast interrupt handling features. Figure 4-1. ARM Cortex-M3 Block Diagram The Cortex-M3 CPU subsystem includes these features: ■ ARM Cortex-M3 CPU ■ Programmable nested vectored interrupt controller (NVIC), tightly integrated with the CPU core ■ Full featured debug and trace modules, tightly integrated with the CPU core ■ Up to 256 KB of flash memory, 2 KB of EEPROM, and 64 KB of SRAM ■ Cache controller ■ Peripheral HUB (PHUB) ■ DMA controller ■ External memory interface (EMIF) 4.1.1 Cortex-M3 Features The Cortex-M3 CPU features include: ■ 4 GB address space. Predefined address regions for code, data, and peripherals. Multiple buses for efficient and simultaneous accesses of instructions, data, and peripherals. ■ The Thumb®-2 instruction set, which offers ARM-level performance at Thumb-level code density. This includes 16-bit and 32-bit instructions. Advanced instructions include: ❐ Bit-field control ❐ Hardware multiply and divide ❐ Saturation ❐ If-Then ❐ Wait for events and interrupts ❐ Exclusive access and barrier ❐ Special register access Nested Vectored Interrupt Controller (NVIC) Debug Block (Serial and JTAG) Embedded Trace Module (ETM) Trace Port Interface Unit (TPIU) Interrupt Inputs JTAG/SWD Trace Pins: 5 for TRACEPORT or 1 for SWV mode Cortex M3 CPU Core I- Bus S-Bus D-Bus 256 KB ECC Flash Cache 32 KB SRAM DMA AHB Bridge & Bus Matrix PHUB GPIO & EMIF Prog. Digital Prog. Analog Special Functions Peripherals AHB Spokes AHB AHB AHB Bus Matrix Cortex M3 Wrapper C-Bus Data Watchpoint and Trace (DWT) Instrumentation Trace Module (ITM) Flash Patch and Breakpoint (FPB) Bus Matrix 32 KB SRAM Bus Matrix |
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