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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SPEAR300 датащи(PDF) 22 Page - STMicroelectronics |
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SPEAR300 датащи(HTML) 22 Page - STMicroelectronics |
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22 / 83 page  Architecture overview SPEAr300 22/83 Doc ID 16324 Rev 2 2.20 Keyboard controller SPEAr300 provides a GPIO/keyboard controller block which is a two-mode input and output port. Main features: ● The selection between the two modes is an APB Bus programmable bit. ● Keyboard interface uses 18 pins ● 18-bit general-purpose parallel port with input or output single pin programmability ● Pins can be used as general purpose I/O or to drive a 9 x 9 keyboard (81 keys) ● Keyboard scan period can be adjusted between 10 ms and 80 ms ● Supports auto-scanning with debouncing. 2.21 CLCD controller SPEAr300 has a color liquid crystal display controller (CLCDC) that provides all the necessary control signals to interface directly to a variety of color and monochrome LCD panels. Main features: ● Resolution programmable up to 1024 x 768 ● 16-bpp true-color non-palletized, for color STN and TFT ● 24-bpp true-color non-palletized, for color TFT ● Supports single and dual panel mono super twisted nematic (STN) displays with 4 or 8- bit interfaces ● Supports single and dual-panel color and monochrome STN displays ● Supports thin film transistor (TFT) color displays ● 15 gray-level mono, 3375 color STN, and 32 K color TFT support ● 1, 2, or 4 bits per pixel (bpp) palletized displays for mono STN ● 1, 2, 4 or 8-bpp palletized color displays for color STN and TFT ● Programmable timing for different display panels ● 256 entry, 16-bit palette RAM, arranged as a 128 x 32-bit RAM physically frame, line and pixel clock signals ● AC bias signal for STN and data enable signal for TFT panels patented gray scale algorithm ● Supports little and big-endian |
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