MSM82C51A Просмотр технического описания (PDF) - Oki Electric Industry

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MSM82C51A

UNIVERSAL SYNCHRONOUS ASYNCHRONOUS RECEIVER TRANSMITTER

Oki Electric Industry 

¡ Semiconductor

MSM82C51A-2RS/GS/JS

Transmitter Control and Flag Timing (ASYNC Mode)

CTS

TXEMPTY

TXRDY

(STATUS BIT)

TXRDY

(PIN)

C/D

WR

tTXEMPTY

Wr DATA 1

Wr TxEn

tTXRDY

Wr DATA 2

Wr DATA 3 Wr DATA 4

TXD

DATA CHAR 1 DATA CHAR 2 DATA CHAR 3

Wr SBRK

DATA CHAR 4

Note: The wave-form chart is based on the case of 7-bit data length + parity bit + 2 stop bit.

Receiver Control and Flag Timing (ASYNC Mode)

BREAK DETECT

FRAMING ERROR

(Status Bit)

OVERRUN ERROR

(Status Bit)

RXRDY

C/D

WR

RD

RXDATA

Wr RxEn

tRXRDY

DATA

CHAR2

Lost

Rd Data

Wr Error

Data CHAR 1 Data CHAR 2 Data CHAR 3

Break

RxEn

RxEn Err Res

Note: The wave-form chart is based on the case of 7 data bit length + parity bit + 2 stop bit.

Transmitter Control and Flag Timing (SYNC Mode)

CTS

TXEMPTY

TXRDY

(StatusBit)

TXRDY (Pin)

C/D

WR

Marking State

TXD

Wr Data Wr Data

CHAR1 CHAR2

Wr Data

CHAR3

Wr Data

CHAR4

Wr Commond Wr Data

SBRK

CHAR5

Data

Data

SYNC

SYNC

Data

Marking

CHAR1

CHAR2 CHAR1 SYNC CHAR2 CHAR3

CHAR4 State

0123 4 012 34 0 12 34 01234 012 34 0 123 4

PAR

PAR

PAR

PAR

PAR

PAR

Spacing Marking

State State

Data

SYNC

CHAR5 CHAR ETC

0123 4 012 34 0 1

PAR

PAR

Note: The wave-form chart is based on the case of 5 data bit length + parity bit and 2 synchronous charactors.

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