ST7MC1K2 datasheet(173/371 Pages) STMICROELECTRONICS

173 / 371 page

Obsolete

Product(s)

- Obsolete

Product(s)

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto

On-chip peripherals

173/371

5RIE

Receiver interrupt enable

This bit is set and cleared by software.

0: Interrupt is inhibited

1: An SCI interrupt is generated whenever OR = 1 or RDRF = 1 in the SCISR register

4ILIE

Idle line interrupt enable

This bit is set and cleared by software.

0: Interrupt is inhibited

1: An SCI interrupt is generated whenever IDLE = 1 in the SCISR register

3TE

Transmitter enable

This bit enables the transmitter. It is set and cleared by software.

0: Transmitter is disabled

1: Transmitter is enabled

Notes:

- During transmission, a ‘0’ pulse on the TE bit (‘0’ followed by ‘1’) sends a preamble

(idle line) after the current word.

- When TE is set there is a 1 bit-time delay before the transmission starts.

2RE

Receiver enable

This bit enables the receiver. It is set and cleared by software.

0: Receiver is disabled in the SCISR register

1: Receiver is enabled and begins searching for a start bit

1RWU

Receiver wake-up

This bit determines if the SCI is in mute mode or not. It is set and cleared by software

and can be cleared by hardware when a wake-up sequence is recognized.

0: Receiver in active mode

1: Receiver in mute mode

Notes

- Mute mode is recommended for detecting only the header and avoiding the reception

of any other characters. For more details please refer to LIN reception on page 161.

- In LIN slave mode, when RDRF is set, the software can not set or clear the RWU bit.

SBK

Send break

This bit set is used to send break characters. It is set and cleared by software.

0: No break character is transmitted

1: Break characters are transmitted

Note: If the SBK bit is set to ‘1’ and then to ‘0’, the transmitter sends a BREAK word at

the end of the current word.

Bits 7:2 have the same function as in SCI mode; please refer to SCI control register 2 (SCICR2) on

page 155.

Table 70.

SCICR2 register description(1) (continued)

Bit Name

Function

Obsolete

Product(s)

- Obsolete

Product(s)

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