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<strong>MC95FG0128</strong>5. Pin DescriptionTable 5-1 Normal Pin descriptionPIN Name I/O Function @RESET Shared withP00Port P0USS0/PCI0P01P02P03P04P05I/O8-Bit I/O PortCan be set in input or output mode in 1-bitunitsInternal pull-up register can be used viasoftware when this port is used as input portOpen Drain enable register can be used viasoftware when this port is used as output portInputACK0/PCI0TxD0/PCI0RxD0/PCI0SUBXIN/PCI0SUBXOUT/PCI0P06SCL/PCI0P07SDA/PCI0P10Port P1INT0P11P128-Bit I/O PortCan be set in input or output mode in 1-bitunitsINT1INT2P13P14P15I/OInternal pull-up register can be used viasoftware when this port is used as input portOpen Drain enable register can be used viasoftware when this port is used as output portInputINT3INT4INT5P16INT6P17INT7P20Port P2AN0/AVREFP21P22P23P24P25P26I/O8-Bit I/O PortCan be set in input or output mode in 1-bitunitsInternal pull-up register can be used viasoftware when this port is used as input portOpen Drain enable register can be used viasoftware when this port is used as output portAN0~AN7 can be selected by ADCM registerInputAN1AN2AN3AN4AN5AN6P27AN7P30Port P3 (TTL <strong>co</strong>mpatible input, PAD)AN8/USS1P31P32P33P34P35I/O8-Bit I/O PortCan be set in input or output mode in 1-bitunitsInternal pull-up register can be used viasoftware when this port is used as input portOpen Drain enable register can be used viasoftware when this port is used as output portInputAN9/ACK1AN10/TxD1AN11/RxD1AN12/SSS0AN13/SCK0Jan 16, 2012 Ver.2.6 27
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