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C515C Datasheet(PDF) 32 Page - Siemens Semiconductor Group |
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C515C Datasheet(HTML) 32 Page - Siemens Semiconductor Group |
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32 / 69 page  C515C Semiconductor Group 32 1997-07-01 Port Structure Selection of Port 5 After a reset operation of the C515C, the quasi-bidirectional 8051-compatible port structure is selected. For selection of the bidirectional (CMOS) port 5 structure the bit PMOD of SFR SYSCON must be set. Because each port 5 pin can be programmed as an input or an output, additionally, after the selection of the bidirectional mode the direction register DIR5 of port 5 must be written. This direction register is mapped to the port 5 register. This means, the port register address is equal to its direction register address. Figure 10 illustrates the port- and direction register configuration. Figure 10 Port Register, Direction Register |
Similar Part No. - C515C |
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Similar Description - C515C |
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