RL78/D1A User's Manual: Hardware - Renesas

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Under development Preliminary document Specifications in this document are tentative and subject to change. RL78/D1A CHAPTER 4 PORT FUNCTIONS 4.2.10 Port 9 48-pin products: P90 to P94 function as a 5-bit I/O port. 64-pin products: P90 to P94 function as a 5-bit I/O port. 80-pin products: P90 to P97 function as an 8-bit I/O port. 100-pin products: P90 to P97 function as an 8-bit I/O port. Port 9 is an 8-bit or a 5-bit I/O port with an output latch and LED direct drive capability. Port 9 can be set to the input mode or output mode in 1-bit units using port mode register 9 (PM9). When the P90 to P97 pins are used as an input port, use of an on-chip pull-up resistor can be specified in 1-bit units by pull-up resistor option register 9(PU9) These pins also function as timer I/O, stepper motor controller/driver outputs/inputs, and segment signal outputs for the LCD controller/driver. To use P90 to P97 as the port function, refer Table 4-10. Table 4-10. Setting of P90 to P97 Pins to port function P90 to P97 Pins LCDPF9 Alternate function port function Register Timer Serial SMPC /SGO Register P90 P91 P92 P93 P94 P95 P96 P97 ZPDS1 Register PM9 Register Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note1 N/A Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note2 N/A Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note3 N/A Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note4 ZPD3PC = 0 Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note1 N/A Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note2 N/A Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note3 N/A Output mode Input port Digital I/O - N/A - Input mode Output port selection 0 Port mode Note4 ZPD4PC = 0 Output mode - - LCD segment output selection Note1 ENk = 0 or (ENk, MODk, DIRk1, DIRk0)=1110 or 1111 Note2 ENk = 0 or (ENk, MODk, DIRk1, DIRk0)=1100 or 1101 Note3 ENk = 0 or (ENk, MODk, DIRk1, DIRk0)=1101 or 1110 Note4 ENk = 0 or (ENk, MODk, DIRk1, DIRk0)=1100 or 1111 (k = 0, 1) Reset signal generation sets port 9 to input mode. Figures 4-35 to4-38 show block diagrams of port 9. Remarks - - - - LCD segment output R01UH0317EJ0004 Rev. 0.04 189 Feb. 22, 2013
Under development Preliminary document Specifications in this document are tentative and subject to change. RL78/D1A CHAPTER 4 PORT FUNCTIONS WRPU RD WRPORT WRPM Figure 4-35. Block Diagram of P90, P91, P95, and P96 WRLCDPF PU9 PU90, PU91, PU95, PU96 Alternate function P9 Output latch (P90, P91, P95, P96) PM9 PM90, PM91, PM95, PM96 Alternate function (SM31, SM32, SM42, SM43) Alternate function (TO21, TO23, TO03, TO05) LCD controller/driver LCDPF9 PF90, PF91, PF95, PF96 P9: Port register 9 PU9: Pull-up resistor option register 9 PM9: Port mode register 9 LCDPF9: LCD port function registers 9 RD: Read signal WRxx: Write signal SMVDD P90/SM31/TI21/ TO21/SEG40, P91/SM32/TI23/ TO23/SEG41, P95/SM42/TI03/ TO03/SEG45, P96/SM43/TI05/ TO05/SEG46 Caution When using the alternate function SM31, SM32, SM42, SM43, TO21, TO23, TO03, or TO05, set the port latch to 0. When using P90, P91, P95, or P96 as a general-purpose port, specify the port settings so that the alternate function outputs are fixed 0. R01UH0317EJ0004 Rev. 0.04 190 Feb. 22, 2013 P-ch
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User’s Manual 16 RL78/D1A 16-Bit
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NOTES FOR CMOS DEVICES (1) VOLTAGE
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Conventions Data significance: High
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CONTENTS CHAPTER 1 OUTLINE.........
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34.2 64-pin products 1276 R5F10CLDx
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