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UPD780701Y Datasheet(PDF) 11 Page - NEC |
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UPD780701Y Datasheet(HTML) 11 Page - NEC |
11 / 66 page µPD78F0034A, 78F0034AY 11 Data Sheet U14040EJ4V0DS 3. PIN FUNCTIONS 3.1 Port Pins (1/2) Pin Name I/O Function After Reset Alternate Function P00 I/O Port 0 Input INTP0 P01 4-bit I/O port. INTP1 P02 Input/output can be specified in 1-bit units. INTP2 P03 An on-chip pull-up resistor can be specified by software. INTP3/ADTRG P10 to P17 Input Port 1 Input ANI0 to ANI7 8-bit input-only port. P20 I/O Port 2 Input SI30 P21 6-bit I/O port. SO30 P22 Input/output can be specified in 1-bit units. SCK30 P23 An on-chip pull-up resistor can be specified by software. RxD0 P24 TxD0 P25 ASCK0 P30 I/O Port 3 N-ch open-drain I/O port. Input – P31 7-bit I/O port. LEDs can be driven directly. P32 Input/output can be specified SDA0Note 1 P33 in 1-bit units. SCL0Note 1 P34 An on-chip pull-up resistor can be SI31Note 2 P35 specified by software. SO31Note 2 P36 SCK31Note 2 P40 to P47 I/O Port 4 Input AD0 to AD7 8-bit I/O port. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by software. Interrupt request flag KRIF is set to 1 by falling edge detection. P50 to P57 I/O Port 5 Input A8 to A15 8-bit I/O port. LEDs can be driven directly. Input/output can be specified in 1-bit units. An on-chip pull-up resistor can be specified by software. P64 I/O Port 6 Input RD P65 4-bit I/O port. WR P66 Input/output can be specified in 1-bit units. WAIT P67 An on-chip pull-up resistor can be specified by software. ASTB Notes 1. SDA0 and SCL0 are incorporated only in the µPD78F0034AY Subseries. 2. SI31, SO31, and SCK31 are incorporated only in the µPD78F0034A Subseries. |
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