7733 datasheet(250/940 Pages) RENESAS

Nome de Peças	7733

Descrição Electrónicos	16-BIT SINGLE-CHIP MICROCOMPUTER

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SERIAL I/O

7733 Group User’s Manual

8–47

8.4 Clock asynchronous serial I/O (UART) mode

8.4.2 Transfer data format

The transfer data format can be selected from three formats shown in Figure 8.4.1. By setting bits 6 to 4

at addresses 3016, 3816 and 6416, the transfer data format can be selected. (Refer to Figures 8.2.2 and

8.2.3.) Be sure to set the same transfer data format for both transmitter and receiver sides.

Figure 8.4.2 shows an example of transfer data format. Table 8.4.6 lists each bit in transmit data.

When transfer data has a length of 7 bits

1ST-7DATA

1SP

1ST-7DATA

2SP

1ST-7DATA-1PAR- 1SP

1ST-7DATA-1PAR- 2SP

When transfer data has a length of 8 bits

1ST-8DATA

1SP

1ST-8DATA

2SP

1ST-8DATA-1PAR- 1SP

1ST-8DATA-1PAR- 2SP

When transfer data has a length of 9 bits

1ST-9DATA

1SP

1ST-9DATA

2SP

1ST-9DATA-1PAR- 1SP

1ST-9DATA-1PAR- 2SP

: Start bit

DATA : Character bit (transfer data)

PAR

: Parity bit

: Stop bit

Fig. 8.4.1 Transfer data format

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