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M16C/26 Datasheet(PDF) 175 Page - Renesas Technology Corp |
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M16C/26 Datasheet(HTML) 175 Page - Renesas Technology Corp |
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175 / 239 page  Renesas Technology Corp. Programmable I/O Ports 169 M16C/26 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Under development Preliminary Specifications Rev. 0.9 Specifications in this manual are tentative and subject to change. Figure 1.17.7. Pull-up Control registers Pull-up control register 0 Symbol Address When reset PUR0 03FC16 000000002 Bit name Function Bit symbol W R b7 b6 b5 b4 b3 b2 b1 b0 PU03 P15 to P17 pull-up The corresponding port is pulled high with a pull-up resistor 0 : Not pulled high 1 : Pulled high Pull-up control register 1 Symbol Address When reset PUR1 03FD16 000000002 Bit name Function Bit symbol W R b7 b6 b5 b4 b3 b2 b1 b0 PU14 P60 to P63 pull-up PU15 P64 to P67 pull-up PU16 P72 to P73 pull-up (Note 1) PU17 P74 to P77 pull-up The corresponding port is pulled high with a pull-up resistor 0 : Not pulled high 1 : Pulled high Note 1: Since P70 and P71 are N-channel open drain ports, pull-up is not available for them. Pull-up control register 2 Symbol Address When reset PUR2 03FE16 000000002 Bit name Function Bit symbol W R b7 b6 b5 b4 b3 b2 b1 b0 PU20 P80 to P83 pull-up PU21 P85 to P87 pull-up PU22 P90 to P93 pull-up PU24 P100 to P103 pull-up PU25 P104 to P107 pull-up Nothing is assigned. In an attempt to write to these bits, write 0. The value, if read, turns out to be 0. The corresponding port is pulled high with a pull-up resistor 0 : Not pulled high 1 : Pulled high Nothing is assigned. In an attempt to write to these bits, write 0. The value, if read, turns out to be 0. Nothing is assigned. In an attempt to write to these bits, write 0. The value, if read, turns out to be 0. Nothing is assigned. In an attempt to write to these bits, write 0. The value, if read, turns out to be 0. Nothing is assigned. In an attempt to write to these bits, write 0. The value, if read, turns out to be 0. 0 : Not pulled high 1 : Pulled high |
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