SH7709S Datasheet, PDF(475/807 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

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SH7709S Datasheet, PDF (475/807 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

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SCPT[0]/RxD0

SCI

Serial

receive

data

Legend

PDRR: PDR read

PDRR*

Internal data bus

Note: * When reading the RxD0 pin, set the RE bit in SCSCR to 1.

Figure 14.4 SCPT[0]/RxD0 Pin

14.1.3 Pin Configuration

The SCI has the serial pins summarized in table 14.1.

Table 14.1 SCI Pins

Pin Name

Abbreviation I/O

Function

Serial clock pin

SCK0

I/O

Clock I/O

Receive data pin

RxD0

Input

Receive data input

Transmit data pin

TxD0

Output

Transmit data output

Note: These pins are made to function as serial pins by performing SCI operation settings with the

TE, RE, CKEI, and CKE0 bits in SCSCR and the C/A bit in SCSMR. Break state

transmission and detection can be performed by means of the SCIâs SCSPTR register.

Rev. 5.00, 09/03, page 431 of 760

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