SH7708 datasheet(444/633 Pages) RENESAS

444 / 633 page

426

15.1.3

Pin Configuration

Table 15.1 shows the pin configuration of the 8-bit general-purpose I/O port.

Table 15.1

Pin Configuration

Signal

I/O

Function

Port 7

PORT7

I/O

I/O port

Port 6

PORT6

I/O

I/O port

Port 5

PORT5

I/O

I/O port

Port 4

PORT4

I/O

I/O port

Port 3

PORT3

I/O

I/O port

Port 2

PORT2

I/O

I/O port

Port 1

PORT1

I/O

I/O port

Port 0

PORT0

I/O

I/O port

Table 15.2 shows the pin configuration of the SCI I/O port.

Table 15.2

Pin Configuration

Signal

I/O

Function

Serial transmission

TxD

Serial data transmission and break status

transmission

Serial reception

RxD

Serial data reception and break status

detection

Serial clock

SCK

I/O

Serial clock input/output and I/O port

Note:

These pins function as mode input pins MD0–MD2 after a power-on reset. They 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 status transmission and detection

can be performed by means of the SCI’s SCSPTR register.

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