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AT91 Datasheet(PDF) 79 Page - ATMEL Corporation |
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AT91 Datasheet(HTML) 79 Page - ATMEL Corporation |
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79 / 153 page  79 AT91X40 Series 1354D–ATARM–08/02 PIO Enable Register Register Name:PIO_PER Access Type:Write Only Offset: 0x00 This register is used to enable individual pins to be controlled by the PIO Controller instead of the associated peripheral. When the PIO is enabled, the associated peripheral input (if any) is held at logic zero. 1 = Enables the PIO to control the corresponding pin (disables peripheral control of the pin). 0 = No effect. PIO Disable Register Register Name: PIO_PDR Access Type:Write Only Offset: 0x04 This register is used to disable PIO control of individual pins. When the PIO control is disabled, the normal peripheral func- tion is enabled on the corresponding pin. 1 = Disables PIO control (enables peripheral control) on the corresponding pin. 0 = No effect. 31 30 29 28 27 26 25 24 P31 P30 P29 P28 P27 P26 P25 P24 23 22 21 20 19 18 17 16 P23 P22 P21 P20 P19 P18 P17 P16 15 14 13 12 11 10 9 8 P15 P14 P13 P12 P11 P10 P9 P8 76 54 32 10 P7 P6 P5 P4 P3 P2 P1 P0 31 30 29 28 27 26 25 24 P31 P30 P29 P28 P27 P26 P25 P24 23 22 21 20 19 18 17 16 P23 P22 P21 P20 P19 P18 P17 P16 15 14 13 12 11 10 9 8 P15 P14 P13 P12 P11 P10 P9 P8 76 54 32 10 P7 P6 P5 P4 P3 P2 P1 P0 |
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