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NUC130-LE2E Fiches technique(PDF) 68 Page - Nuvoton Technology Corporation |
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NUC130-LE2E Fiches technique(HTML) 68 Page - Nuvoton Technology Corporation |
68 / 107 page NUC100/120xxxDN Aug 31, 2015 Page 68 of 107 Rev 1.01 General Purpose I/O (GPIO) 6.6 6.6.1 Overview The NuMicro ® NUC100 series has up to 84 General Purpose I/O pins to be shared with other function pins depending on the chip configuration. These 84 pins are arranged in 6 ports named as GPIOA, GPIOB, GPIOC, GPIOD, GPIOE and GPIOF. The GPIOA/B/C/D/E port has the maximum of 16 pins and GPIOF port has the maximum of 4 pins. Each of the 84 pins is independent and has the corresponding register bits to control the pin mode function and data. The I/O type of each of I/O pins can be configured by software individually as input, output, open- drain or Quasi-bidirectional mode. After reset, the I/O mode of all pins are depending on Config0[10] setting. In Quasi-bidirectional mode, I/O pin has a very weak individual pull-up resistor which is about 110~300 K for V DD is from 5.0 V to 2.5 V. 6.6.2 Features Four I/O modes: – Quasi-bidirectional – Push-Pull output – Open-Drain output – Input only with high impendence TTL/Schmitt trigger input selectable by GPx_TYPE[15:0] in GPx_MFP[31:16] I/O pin configured as interrupt source with edge/level setting Configurable default I/O mode of all pins after reset by Config0[10] setting – If Config[10] is 0, all GPIO pins in input tri-state mode after chip reset – If Config[10] is 1, all GPIO pins in Quasi-bidirectional mode after chip reset I/O pin internal pull-up resistor enabled only in Quasi-bidirectional I/O mode Enabling the pin interrupt function will also enable the pin wake-up function. |
Numéro de pièce similaire - NUC130-LE2E |
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Description similaire - NUC130-LE2E |
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