MC68HC811L1L1 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC68HC811L1L1

ROM-based high-performance microcontrollers

Freescale Semiconductor 

Freescale Semiconductor, Inc.

recovery scheme distinguishes valid data from noise in the serial data stream. The

data input is selectively sampled to detect receive data, and a majority voting circuit

determines the value and integrity of each bit.

RECEIVER

BAUD RATE

CLOCK

PD0

RxD

DDD0

÷16

PIN BUFFER

AND CONTROL

DATA

RECOVERY

DISABLE

DRIVER

RE

10 (11) - BIT

Rx SHIFT REGISTER

(8) 7 6 5 4 3 2 1 0

MSB

ALL ONES

M

WAKEUP

LOGIC

RWU

8

SCCR1 SCI CONTROL 1

SCSR SCI STATUS 1

RDRF

RIE

IDLE

ILIE

OR

RIE

SCDR Rx BUFFER

(READ ONLY)

8

8

SCCR2 SCI CONTROL 2

SCI Tx

REQUESTS

SCI INTERRUPT

REQUEST

TECHNICAL DATA

Figure 7-2 SCI Receiver Block Diagram

SERIAL COMMUNICATIONS INTERFACE

For More Information On This Product,

Go to: www.freescale.com

INTERNAL

DATA BUS

11 SCI RX BLOCK

7-3

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