ST92F124 datasheet(233/429 Pages) STMICROELECTRONICS

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MULTIPROTOCOL SERIAL COMMUNICATIONS INTERFACE (SCI-M)

MULTIPROTOCOL SERIAL COMMUNICATIONS INTERFACE (Cont’d)

CHARACTER

CONFIGURATION

(CHCR)

R250 - Read/Write

Reset value: undefined

Bit 7 = AM: Address Mode.

This bit, together with the AMEN bit (in the IDPR

bit/character match operation. Please refer to the

table in the IDPR register description.

Bit 6 = EP: Even Parity.

0: Select odd parity (when parity is enabled).

1: Select even parity (when parity is enabled).

Bit 5 = PEN: Parity Enable.

0: No parity bit.

1: Parity bit generated (transmit data) or checked

(received data).

Note: If the address/9th bit is enabled, the parity

bit will precede the address/9th bit (the 9th bit is

never included in the parity calculation).

Bit 4 = AB: Address/9th Bit.

0: No Address/9th bit.

1: Address/9th bit included in the character format

between the parity bit and the first stop bit. This

bit can be used to address the SCI or as a ninth

data bit.

Bit 3:2 = SB[1:0]: Number of Stop Bits..

Bit 1:0 = WL[1:0]: Number of Data Bits

PEN

SB1

SB0

WL1

WL0

SB1

SB0

Number of stop bits

in 16X mode

in 1X mode

1.5

2.5

WL1

WL0

Data Length

5 bits

6 bits

7 bits

8 bits

ST92F124 데이터시트(PDF) 233 Page - STMicroelectronics

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