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D780232 Datasheet(PDF) 9 Page - NEC |
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D780232 Datasheet(HTML) 9 Page - NEC |
9 / 52 page 9 µPD780232 Data Sheet U13415EJ2V0DS 3. PIN FUNCTIONS 3.1 Port Pins Pin Name I/O Function After Alternate Reset Function P00 I/O Port 0. Input INTP0 3-bit I/O port. P01 Input/output can be specified in 1-bit units. INTP1 When used as an input port, an on-chip pull-up resistor can be specified P02 by software. TI P20 I/O Port 2. Input SCK3 P21 8-bit I/O port. SO3 P22, P23 Input/output can be specified in 1-bit units. — P24 When used as an input port, an on-chip pull-up resistor can be specified BUSY P25 by software. SO1 P26 SI1 P27 SCK1 P30 to P37 Output Port 3. Output FIP24 to FIP31 P-ch open-drain 8-bit high-tolerance output port. A pull-down resistor can be incorporated in 1-bit units to VLOAD by mask option. P40 to P47 Output Port 4. Output FIP32 to FIP39 P-ch open-drain 8-bit high-tolerance output port. A pull-down resistor can be incorporated in 1-bit units to VLOAD by mask option. P50 to P57 I/O Port 5. Input FIP40 to FIP47 P-ch open-drain 8-bit high-tolerance I/O port. Input/output can be specified in 1-bit units. A pull-down resistor can be incorporated in 1-bit units by mask option (Connection to VLOAD or VSS0 can be specified in 1-bit units). P60 to P64 I/O Port 6. Input FIP48 to FIP52 P-ch open-drain 5-bit high-tolerance I/O port. Input/output can be specified in 1-bit units. A pull-down resistor can be incorporated in 1-bit units by mask option (Connection to VLOAD or VSS0 can be specified in 1-bit units). |
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