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PC87366 датащи(PDF) 136 Page - National Semiconductor (TI) |
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PC87366 датащи(HTML) 136 Page - National Semiconductor (TI) |
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136 / 240 page ![]() 6.0 General-Purpose Input/Output (GPIO) Port (Continued) 136 www.national.com 6.4.4 GPIO Data Out Register (GPDO) Location: Device specific Type: R/W 6.4.5 GPIO Data In Register (GPDI) Location: Device specific Type: RO Bit 76543210 Name Data Out Reset 11111111 Bit Description 7 Data Out. Bits 7-0 correspond to pins 7-0 respectively. The value of each bit determines the value driven on the corresponding GPIO pin when its output buffer is enabled. Writing to the bit latches the written data unless the bit is locked by the GPCFG register Lock bit. Reading the bit returns its value, regardless of the pin value and configuration. 0: Corresponding pin driven to low when output enabled 1: Corresponding pin driven or released to high (according to buffer type and static pull-up selection) when output enabled 6 5 4 3 2 1 0 Bit 76543210 Name Data In Reset XXXXXXXX Bit Description 7 Data In. Bits 7-0 correspond to pins 7-0 respectively. Reading each bit returns the value of the corresponding GPIO pin, regardless of the pin configuration and the GPDO register value. Write is ignored. 0: Corresponding pin level low 1: Corresponding pin level high 6 5 4 3 2 1 0 |
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