MC68HC705MC4MP datasheet(132/180 Pages) FREESCALE

部件名	MC68HC705MC4MP

功能描述	General Release Specification

PDF	180 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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132 / 180 page

Serial Communications Interface

MC68HC705MC4 — Rev. 2.0

Serial Communications Interface

RWU — Receiver Wakeup Enable

This read/write bit puts the receiver in a standby state. Typically, data

transmitted to the receiver clears the RWU bit and returns the receiver

to normal operation. The WAKE bit in SCCR1 determines whether an

idle input or an address mark brings the receiver out of the standby

state. Reset clears the RWU bit.

1 = Standby state

0 = Normal operation

SBK — Send Break

Setting this read/write bit continuously transmits break codes in the

form of 10-bit or 11-bit groups of logic 0s. Clearing the SBK bit stops

the break codes and transmits a logic 1 as a start bit. Reset clears the

SBK bit.

1 = Break codes being transmitted

0 = No break codes being transmitted

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MC68HC705MC4MP 数据表(PDF) 132 Page - Freescale Semiconductor, Inc