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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 />

WRLCDPF<br />

Figure 4-6. Block Diagram of P05 to P07<br />

PU0<br />

PU05 to PU07<br />

Alternate<br />

function<br />

P0<br />

Output latch<br />

(P05 to P07)<br />

PM0<br />

PM05 to PM07<br />

Alternate<br />

function<br />

(TO05 to TO07)<br />

Alternate<br />

function<br />

(TO15 to TO17)<br />

LCD controller/driver<br />

LCDPF0<br />

PF05 to PF07<br />

P0: Port register 0<br />

PU0: Pull-up resistor option register 0<br />

PM0: Port mode register 0<br />

LCDPF0: LCD port function registers 0<br />

RD: Read signal<br />

WRxx: Write signal<br />

P05/TI05/<br />

TO05/TI15/TO15/<br />

SEG19,<br />

P06/TI06/TO06/<br />

TI16/TO16/SEG20,<br />

P07/TI07/TO07/<br />

TI17/TO17/SEG21<br />

Caution When using the alternate function TO05 to TO07 or TO15 to TO17, set the port latch to 0.<br />

When using P05 to P07 as a general-purpose port, specify the port settings so that the alternate<br />

function outputs are fixed 0.<br />

R01UH0317EJ0004 Rev. 0.04 152<br />

Feb. 22, 2013<br />

EVDD<br />

P-ch

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