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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STCOM10 датащи(PDF) 11 Page - STMicroelectronics |
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STCOM10 датащи(HTML) 11 Page - STMicroelectronics |
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11 / 58 page  DocID028515 Rev 1 11/58 STCOM Description 58 1.3.2 Floating point unit (FPU) The FPU fully supports single precision add, subtract, multiply, divide, multiply and accumulate, and square root operations. It also provides conversions between the fixed point and floating point data formats, and floating point constant instructions. The FPU provides floating point operations that are compliant with the NSI/IEEE Std 754- 2008 A, IEEE Standard for Binary Floating-point Arithmetic©, referred to as the IEEE 754 Standard. The FPU contains 32 single precision extension registers, which can also be accessible as 16 double word registers for load, store, and move operations. 1.3.3 Nested vectored interrupt controller (NVIC) The STCOM embeds a NVIC able to handle 80 maskable interrupts. The software priority level is configurable in the range of 0 - 31 for each interrupt. A higher level corresponds to a lower priority, so the level 0 is the highest interrupt priority. In case two or more interrupt lines share the same software priority level, the hardware priority level, which is described in Table 2, is used. Table 1. Cortex™-M4F core configuration Component Presence Comment JTAG Yes Full-featured debug access port (DAP), SWJ-DP and AHB access port ETM Yes Embedded Trace Macrocell present ITM Yes Instrumentation Trace Macrocell TPIU Yes Trace port unit interface present FPB Yes Flash patch breakpoint DWT Yes Data watchpoint and trace DEBUG level N/A Full debug with data matching for watchpoint generation IRQ N/A 80 IRQ source Priority level N/A Set to 5:32 levels MPU Yes Memory protection unit present. 8 regions implemented FPU Yes Floating point unit present (single precision) BB Yes Bit banding region present RESET_ALL_REGS Yes Reset all synchronous state CLKGATE Yes Possibility to minimize dynamic power dissipation by clock gating WIC Yes 10 lines: NMI, WWDG, RTC, GPIOs, IPC, DMA, GPT0, SPI0 and USART0 |
Аналогичный номер детали - STCOM10 |
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Аналогичное описание - STCOM10 |
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