TMP86CS49FG datasheet(156/252 Pages) TOSHIBA

156 / 252 page

Page 142

12. Asynchronous Serial interface (UART1 )

12.3 Transfer Data Format

TMP86CS49FG

12.3 Transfer Data Format

In UART1, an one-bit start bit (Low level), stop bit (Bit length selectable at high level, by UART1CR1<STBT>),

and parity (Select parity in UART1CR1<PE>; even- or odd-numbered parity by UART1CR1<EVEN>) are added to

the transfer data. The transfer data formats are shown as follows.

Figure 12-2 Transfer Data Format

Figure 12-3 Caution on Changing Transfer Data Format

Note: In order to switch the transfer data format, perform transmit operations in the above Figure 12-3 sequence except

for the initial setting.

Start

Bit 0

Bit 1

Bit 6

Bit 7

Stop 1

Start

Bit 0

Bit 1

Bit 6

Bit 7

Stop 1

Stop 2

Start

Bit 0

Bit 1

Bit 6

Bit 7

Parity

Stop 1

Start

Bit 0

Bit 1

Bit 6

Bit 7

Parity

Stop 1

Stop 2

STBT

Frame Length

123

Without parity / 1 STOP bit

With parity / 1 STOP bit

Without parity / 2 STOP bit

With parity / 2 STOP bit

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