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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M50FLW080A датащи(PDF) 37 Page - STMicroelectronics |
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M50FLW080A датащи(HTML) 37 Page - STMicroelectronics |
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37 / 64 page  M50FLW080A, M50FLW080B Firmware Hub/low-pin-count (FWH/LPC) interface Configuration 37/64 6.2 Firmware Hub/low-pin-count (FWH/LPC) General-Purpose Input Register The FWH/LPC General Purpose Input Register holds the state of the General Purpose Input pins, GPI0-GPI4. When this register is read, the state of these pins is returned. This register is read-only. Writing to it has no effect. The signals on the FWH/LPC Interface General Purpose Input pins should remain constant throughout the whole Bus Read cycle. 6.3 Manufacturer Code Register Reading the Manufacturer Code Register returns the value 20h, which is the Manufacturer Code for STMicroelectronics. This register is read-only. Writing to it has no effect. Table 17. General-Purpose Input Register definition Bit Bit Name Value Function(1) 1. Applies to the General Purpose Inputs Register (GPI-REG). 7-5 Reserved 4GPI4 ‘1’ Input Pin GPI4 is at VIH ‘0’ Input Pin GPI4 is at VIL 3GPI3 ‘1’ Input Pin GPI3 is at VIH ‘0’ Input Pin GPI3 is at VIL 2GPI2 ‘1’ Input Pin GPI2 is at VIH ‘0’ Input Pin GPI2 is at VIL 1GPI1 ‘1’ Input Pin GPI1 is at VIH ‘0’ Input Pin GPI1 is at VIL 0GPI0 ‘1’ Input Pin GPI0 is at VIH ‘0’ Input Pin GPI0 is at VIL |
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