MC68340 datasheet(49/441 Pages) FREESCALE

Teilenummer	MC68340

Bauteilbeschribung	Integrated Processor with DMA User?셲 Manual

PDF	441 Pages

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Hersteller	FREESCALE [Freescale Semiconductor, Inc]

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49 / 441 page

MOTOROLA

MC68340 USER’S MANUAL

2- 15

Table 2-5. Signal Summary (Continued)

Signal Name

Mnemonic

Input/Output

Active State

Three-State

Transmit Data

TxDA, TxDB

Out

—

Clear-to-Send

CTSA, CTSB

Low

—

Request-to-Send/

OP1, OP0

RTSB, RTSA

Out/Out

Low/—

Serial Clock

SCLK

—

Transmitter Ready/OP6

≈RDYA

Out/Out

Low/—

Receiver Ready/

FIFO Full/OP4

≈RDYA

Out/Out/Out

Low/Low/—

DMA Request

DREQ2, DREQ1

Low

—

DMA Acknowledge

DACK2, DACK1

Out

Low

DMA Done

DONE2, DONE1

I/O

Low

Timer Gate

TGATE2,

TGATE1

Low

—

Timer Input

TIN2, TIN1

—

Timer Output

TOUT2, TOUT1

Out

—

Yes

Test Clock

TCK

—

Test Mode Select

TMS

High

—

Test Data In

TDI

High

—

Test Data Out

TDO

Out

High

—

Synchronizer Power

VCCSYN

–—

—

System Power Supply and

Return

VCC, GND

–

—

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