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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 />

Internal bus<br />

WRPU<br />

WRPIM<br />

RD<br />

WRPORT<br />

WRPM<br />

Figure 4-46. Block Diagram of P135<br />

PU13<br />

PU135<br />

PIM13<br />

PIM135<br />

Alternate<br />

function<br />

P13<br />

Output latch<br />

(P135)<br />

PM13<br />

PM135<br />

Alternate<br />

function<br />

(SGO/SGOF)<br />

Alternate<br />

function<br />

(TO26)<br />

Selector<br />

P13: Port register 13<br />

PU13: Pull-up resistor option register 13<br />

PM13: Port mode register 13<br />

RD: Read signal<br />

WRxx: Write signal<br />

Schmitt1<br />

Schmitt3<br />

P135/SGO/SGOF/<br />

CRxD1/TI26/TO26<br />

Caution When using the alternate function SGO/SGOF or TO26, set the port latch to 0.<br />

When using P135 as a general-purpose port, specify the port settings so that the alternate function<br />

outputs are fixed to 0.<br />

R01UH0317EJ0004 Rev. 0.04 202<br />

Feb. 22, 2013<br />

EVDD<br />

P-ch

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