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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 13 ASYNCHRONOUS SERIAL INTERFACE LIN-UART (UARTF)<br />

(18) Serial communication pin select registers 0, 1 (STSEL0, STSEL1)<br />

The STSEL0, 1 register are used to switch the input source to the serial array unit and the LIN-UARTn<br />

communication pins.<br />

This register can be read or written in 1-bit units or 8-bit units.<br />

Figure 13-18. Format of STSEL0 Register<br />

Address: FFF3C After reset: 00H R/W<br />

Symbol 7 6 5 4 3 2 1 0<br />

STSEL0 0 SCSI100 0 SCSI010 SCSI001 SCSI000 SUARTF1 SUARTF0<br />

SUARTF0<br />

Communication pin selection of UARTF0<br />

LTxD0 LRxD0<br />

0 P71 P70<br />

1 P15 P14<br />

SUARTF1<br />

Communication pin selection of UARTF1<br />

LTxD1 LRxD1<br />

0 P10 P11<br />

1 P131 P132<br />

SCSI001 SCSI000<br />

CSI00 communication pin selection<br />

SCK00 SI00 SO00<br />

0 0 P10 P11 P12<br />

0 1 P04 P03 P02<br />

1 0 P34 P33 P32<br />

Other than above Setting prohibited (same as “00” setting)<br />

SCSI010<br />

CSI01 communication pin selection<br />

SCK01 SI01 SO01<br />

0 P74 P75 P13<br />

1 P56 P55 P54<br />

SCSI100<br />

CSI10 communication pin selection<br />

SCK10 SI10 SO10<br />

0 P133 P132 P131<br />

1 P51 P52 P53<br />

R01UH0317EJ0004 Rev. 0.04 713<br />

Feb. 22, 2013

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