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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC17C44-08/P датащи(PDF) 63 Page - Microchip Technology |
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PIC17C44-08/P датащи(HTML) 63 Page - Microchip Technology |
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63 / 240 page  © 1996 Microchip Technology Inc. DS30412C-page 63 PIC17C4X TABLE 9-9: PORTE FUNCTIONS TABLE 9-10: REGISTERS/BITS ASSOCIATED WITH PORTE Name Bit Buffer Type Function RE0/ALE bit0 TTL Input/Output or system bus Address Latch Enable (ALE) control pin. RE1/OE bit1 TTL Input/Output or system bus Output Enable (OE) control pin. RE2/WR bit2 TTL Input/Output or system bus Write (WR) control pin. Legend: TTL = TTL input. Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on Power-on Reset Value on all other resets (Note1) 15h, Bank 1 PORTE — — — — — RE2/WR RE1/OE RE0/ALE ---- -xxx ---- -uuu 14h, Bank 1 DDRE Data direction register for PORTE ---- -111 ---- -111 Legend: x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by PORTE. Note 1: Other (non power-up) resets include: external reset through MCLR and the Watchdog Timer Reset. |
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