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HD64F36022 Datasheet(PDF) 139 Page - Renesas Technology Corp |
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HD64F36022 Datasheet(HTML) 139 Page - Renesas Technology Corp |
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139 / 384 page  Section 9 I/O Ports Rev. 4.00 Sep. 23, 2005 Page 113 of 354 REJ09B0025-0400 9.5.2 Port Data Register 8 (PDR8) PDR8 is a general I/O port data register of port 8. Bit Bit Name Initial Value R/W Description 7 to 5 All 0 Reserved 4 3 2 1 0 P84 P83 P82 P81 P80 0 0 0 0 0 R/W R/W R/W R/W R/W PDR8 stores output data for port 8 pins. If PDR8 is read while PCR8 bits are set to 1, the value stored in PDR8 is read. If PDR8 is read while PCR8 bits are cleared to 0, the pin states are read regardless of the value stored in PDR8. 9.5.3 Pin Functions The correspondence between the register specification and the port functions is shown below. • P84/FTIOD pin Register TIOR1 PCR8 Bit Name IOD2 IOD1 IOD0 PCR84 Pin Function Setting Value 0 0 0 0 P84 input/FTIOD input pin 1 P84 output/FTIOD input pin 0 0 1 X FTIOD output pin 0 1 X X FTIOD output pin 1 X X 0 P84 input/FTIOD input pin 1 P84 output/FTIOD input pin Legend X: Don't care. |
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