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RL78/D1A User's Manual: Hardware - Renesas

RL78/D1A User's Manual: Hardware - Renesas

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Under development<br />

Preliminary document<br />

Specifications in this document are tentative and subject to change.<br />

<strong>RL78</strong>/<strong>D1A</strong> CHAPTER 4 PORT FUNCTIONS<br />

WRPU<br />

RD<br />

WRPORT<br />

WRPM<br />

WRZPDS<br />

WRLCDPF<br />

Figure 4-37. Block Diagram of P93<br />

PU9<br />

PU93<br />

Alternate<br />

function<br />

P9<br />

Output latch<br />

(P93)<br />

PM9<br />

PM93<br />

Alternate<br />

function<br />

(SM34)<br />

Alternate<br />

function<br />

(TO27)<br />

Alternate<br />

function<br />

(SGO/SGOF)<br />

ZPDS1<br />

ZPD3PC<br />

LCD controller/driver<br />

LCDPF9<br />

PF93<br />

ZPD comparator<br />

SMVDD<br />

P9: Port register 9<br />

PU9: Pull-up resistor option register 9<br />

PM9: Port mode register 9<br />

LCDPF9: LCD port function registers 9<br />

ZPDS1: ZPD detection voltage setting register1/ZPD analog input control register<br />

RD: Read signal<br />

WRxx: Write signal<br />

P93/SM34/ZPD34/<br />

TI27/TO27/<br />

SGO/SGOF/<br />

SEG43<br />

Caution When using the alternate function SM34, TO27 or SGO/SGOF, set the port latch to 0.<br />

When using P93 as a general-purpose port, specify the port settings so that the alternate function<br />

outputs are fixed 0.<br />

R01UH0317EJ0004 Rev. 0.04 192<br />

Feb. 22, 2013<br />

P-ch

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