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AM186ED-20KC/W 数据表(PDF) 29 Page - Advanced Micro Devices |
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AM186ED-20KC/W 数据表(HTML) 29 Page - Advanced Micro Devices |
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29 / 88 page  Am186ED/EDLV Microcontrollers 29 PRELI M INARY D RA F T Table 2. Numeric PIO Pin Designations Table 3. Alphabetic PIO Pin Designations Notes: The following notes apply to both tables. 1. These pins are used by many emulators. (Emulators also use S2–S0, RES, NMI, CLKOUTA, BHE, ALE, AD15– AD0, and A16–A0.) 2. These pins revert to normal operation if BHE/ADEN is held Low during power-on reset. 3. When used as a PIO, input with pullup option available. 4. When used as a PIO, input with pulldown option available. PIO No Associated Pin Power-On Reset Status 0 TMRIN1 Input with pullup 1 TMROUT1 Input with pulldown 2PCS6/A2 Input with pullup 3PCS5/A1 Input with pullup 4 DT/R Normal operation(3) 5DEN/DS Normal operation(3) 6 SRDY Normal operation(4) 7(1) A17 Normal operation(3) 8(1) A18 Normal operation(3) 9(1) A19 Normal operation(3) 10 TMROUT0 Input with pulldown 11 TMRIN0 Input with pullup 12 DRQ0/INT5 Input with pullup 13 DRQ1/INT6 Input with pullup 14 MCS0 Input with pullup 15 MCS1/UCAS Input with pullup 16 PCS0 Input with pullup 17 PCS1 Input with pullup 18 PCS2/CTS1/ENRX1 Input with pullup 19 PCS3/RTS1/RTR1 Input with pullup 20 RTS0/RTR0 Input with pullup 21 CTS0/ENRX0 Input with pullup 22 TXD0 Input with pullup 23 RXD0 Input with pullup 24 MCS2/LCAS Input with pullup 25 MCS3/RAS1 Input with pullup 26(1,2) UZI Input with pullup 27 TXD1 Input with pullup 28 RXD1 Input with pullup 29(1,2) S6/CLKDIV2 Input with pullup 30 INT4 Input with pullup 31 INT2/INTA0/PWD Input with pullup Associated Pin PIO No Power-On Reset Status A17(1) 7 Normal operation(3) A18(1) 8 Normal operation(3) A19(1) 9 Normal operation(3) CTS0/ENRX0 21 Input with pullup DEN/DS 5 Normal operation(3) DRQ0/INT5 12 Input with pullup DRQ1/INT6 13 Input with pullup DT/R 4 Normal operation(3) INT2/INTA0/PWD 31 Input with pullup INT4 30 Input with pullup MCS0 14 Input with pullup MCS1/UCAS 15 Input with pullup MCS2/LCAS 24 Input with pullup MCS3/RAS1 25 Input with pullup PCS0 16 Input with pullup PCS1 17 Input with pullup PCS2/CTS1/ENRX1 18 Input with pullup PCS3/RTS1/RTR1 19 Input with pullup PCS5/A1 3 Input with pullup PCS6/A2 2 Input with pullup RTS0/RTR0 20 Input with pullup RXD0 23 Input with pullup RXD1 28 Input with pullup S6/CLKDIV2(1,2) 29 Input with pullup SRDY 6 Normal operation(4) TMRIN0 11 Input with pullup TMRIN1 0 Input with pullup TMROUT0 10 Input with pulldown TMROUT1 1 Input with pulldown TXD0 22 Input with pullup TXD1 27 Input with pullup UZI(1,2) 26 Input with pullup |
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