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UPD78F9177GB-8ES Datasheet(PDF) 11 Page - NEC |
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UPD78F9177GB-8ES Datasheet(HTML) 11 Page - NEC |
11 / 31 page 11 µµµµPD78F9177, 78F9177Y Data Sheet U14022EJ1V0DS00 3. PIN FUNCTIONS 3.1 Port Pins Pin Name I/O Function After Reset Alternate Function P00 to P05 I/O Port 0 6-bit input/output port Input/output mode can be specified in 1-bit units When used as an input port, an on-chip pull-up resistor can be specified by software. Input − P10, P11 I/O Port 1 2-bit input/output port Input/output mode can be specified in 1-bit units When used as an input port, an on-chip pull-up resistor can be specified by software. Input − P20 SCK20/ASCK20 P21 SO20/TxD20 P22 SI20/RxD20 P23 SCL0 Note P24 SDA0 Note P25 TI80/SS20 P26 I/O Port 2 7-bit input/output port Input/output mode can be specified in 1-bit units For P20 to P22, P25, and P26, an on-chip pull-up resistor can be specified by software. Only P23 and P24 can be used as N-ch open-drain input/output port pins. Input TO80 P30 INTP0/TI81/CPT90 P31 INTP1/TO81 P32 INTP2/TO90 P33 I/O Port 3 4-bit input/output port Input/output mode can be specified in 1-bit units On-chip pull-up resistor can be specified by software. Input INTP3/TO82/BZO90 P50 to P53 I/O Port 5 4-bit N-ch open-drain input/output port Input/output mode can be specified in 1-bit units Input − P60 to P67 Input Port 6 8-bit input-only port Input ANI0 to ANI7 Note µPD78F9177Y only |
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