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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP23017-E/SP датащи(PDF) 20 Page - Microchip Technology |
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MCP23017-E/SP датащи(HTML) 20 Page - Microchip Technology |
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20 / 48 page  MCP23017/MCP23S17 DS21952B-page 20 © 2007 Microchip Technology Inc. 1.6.8 INTERRUPT FLAG REGISTER The INTF register reflects the interrupt condition on the port pins of any pin that is enabled for interrupts via the GPINTEN register. A ‘set’ bit indicates that the associated pin caused the interrupt. This register is ‘read-only’. Writes to this register will be ignored. REGISTER 1-8: INTF – INTERRUPT FLAG REGISTER (ADDR 0x07) R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 INT7 INT6 INT5 INT4 INT3 INT2 INT1 INT0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-0 INT7:INT0: These bits reflect the interrupt condition on the port. Will reflect the change only if interrupts are enabled (GPINTEN) <7:0>. 1 = Pin caused interrupt. 0 = Interrupt not pending. |
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