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ST72344S2 データシート(PDF) 80 Page - STMicroelectronics |
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ST72344S2 データシート(HTML) 80 Page - STMicroelectronics |
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80 / 247 page  I/O ports ST72344xx, ST2345xx 80/247 Doc ID 12321 Rev 6 Caution: In small packages, an internal pull-up is applied permanently to the non-bonded I/O pins. So they have to be kept in input floating configuration to avoid unwanted consumption. Table 35. Port configuration Port Pin name Input Output OR = 0 OR = 1 OR = 0 OR = 1 Port A PA7:6 floating true open-drain PA5:4 floating pull-up open drain push-pull PA3 floating floating interrupt open drain push-pull Port B PB3 floating floating interrupt open drain push-pull PB4, PB2:0 floating pull-up interrupt open drain push-pull Port C PC7:0 floating pull-up open drain push-pull Port D PD7:6 floating true open-drain PD5:0 floating pull-up open drain push-pull Port E PE1 floating floating interrupt open drain push-pull PE0 floating pull-up open drain push-pull Port F PF7:6, 4 floating pull-up open drain push-pull PF2 floating floating interrupt open drain push-pull PF1:0 floating pull-up interrupt open drain push-pull Table 36. I/O port register map and reset values Address (Hex.) Register label 7 654 321 0 Reset value of all I/O port registers 0 000 000 0 0000h PADR MSB LSB 0001h PADDR 0002h PAOR 0003h PBDR MSB LSB 0004h PBDDR 0005h PBOR 0006h PCDR MSB LSB 0007h PCDDR 0008h PCOR 0009h PDDR MSB LSB 000Ah PDDDR 000Bh PDOR |
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