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7905 Datasheet(PDF) 21 Page - Renesas Technology Corp |
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7905 Datasheet(HTML) 21 Page - Renesas Technology Corp |
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21 / 565 page  DESCRIPTION 7905 Group User’s Manual Rev.1.0 1-6 1.3 Pin description I/O I/O Input Input P7 is an 8-bit I/O port with the same function as port P1. By software, these pins can function as input pins for the A-D converter, or output pins for the D-A converter. P8 is a 4-bit I/O port with the same function as port P1. By software, these pins can function as input pins for the A-D converter, output pins for the D-A converter, or as I/O pins for serial I/O. This pin has the function to forcibly place port P4 pins in the input mode (port-output-cutoff function). Also, this pin functions as an input pin for INT0, and as an input pin for the port-output- cutoff function in the motor drive waveform output mode. This pin has the function to forcibly place port P6 pins in the input mode (port-output-cutoff function). Also, this pin functions as an input pin for INT4, and as an input pin for the port-output- cutoff function in the motor drive waveform output mode. Input/Output I/O port P7 I/O port P8 P4OUTCUT input P6OUTCUT input P70–P77 P80–P83 P4OUTCUT P6OUTCUT Table 1.3.2 Pin description (2) Name Pin Function |
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