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MC68340 データシート(Datasheet) 5 Page - Freescale Semiconductor, Inc

部品番号. MC68340
部品情報  Integrated Processor with DMA User’s Manual
ダウンロード  441 Pages
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メーカー  FREESCALE [Freescale Semiconductor, Inc]
ホームページ  http://www.freescale.com
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 5 page
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11/2/95
SECTION 1: OVERVIEW
UM Rev.1.0
iv
MC68340 USER'S MANUAL
MOTOROLA
TABLE OF CONTENTS (Continued)
Paragraph
Page
Number
Title
Number
2.7
Bus Control Signals .........................................................................................2-6
2.7.1
Data and Size Acknowledge (
DSACK1, DSACK0)................................2-6
2.7.2
Address Strobe (
AS)....................................................................................2-6
2.7.3
Data Strobe (
DS)...........................................................................................2-7
2.7.4
Transfer Size (SIZ1, SIZ0) ..........................................................................2-7
2.7.5
Read/Write (R/
W)...........................................................................................2-7
2.8
Bus Arbitration Signals....................................................................................2-7
2.8.1
Bus Request (
BR)..........................................................................................2-7
2.8.2
Bus Grant (
BG)...............................................................................................2-7
2.8.3
Bus Grant Acknowledge (
BGACK).............................................................2-7
2.8.4
Read-Modify-Write Cycle (
RMC).................................................................2-8
2.9
Exception Control Signals ..............................................................................2-8
2.9.1
Reset (
RESET)...............................................................................................2-8
2.9.2
Halt (
HALT)....................................................................................................2-8
2.9.3
Bus Error (
BERR)...........................................................................................2-8
2.10
Clock Signals ....................................................................................................2-8
2.10.1
System Clock (CLKOUT)............................................................................2-8
2.10.2
Crystal Oscillator (EXTAL, XTAL)...............................................................2-9
2.10.3
External Filter Capacitor (XFC) ..................................................................2-9
2.10.4
Clock Mode Select (MODCK).....................................................................2-9
2.11
Instrumentation and Emulation Signals .......................................................2-9
2.11.1
Instruction Fetch (
IFETCH)..........................................................................2-9
2.11.2
Instruction Pipe (
IPIPE)...............................................................................2-9
2.11.3
Breakpoint (
BKPT)........................................................................................2-10
2.11.4
Freeze (FREEZE)..........................................................................................2-10
2.12
DMA Module Signals.......................................................................................2-10
2.12.1
DMA Request (
DREQ2, DREQ1).................................................................2-10
2.12.2
DMA Acknowledge (
DACK2, DACK1)......................................................2-10
2.12.3
DMA Done (
DONE2, DONE1)......................................................................2-10
2.13
Serial Module Signals.....................................................................................2-11
2.13.1
Serial Crystal Oscillator (X2, X1) ...............................................................2-11
2.13.2
Serial External Clock Input (SCLK)...........................................................2-11
2.13.3
Receive Data (RxDA, RxDB).......................................................................2-11
2.13.4
Transmit Data (TxDA, TxDB).......................................................................2-11
2.13.5
Clear to Send (
CTSA, CTSB).....................................................................2-11
2.13.6
Request to Send (
RTSA, RTSB)................................................................2-11
2.13.7
Transmitter Ready (
T
≈RDYA).....................................................................2-11
2.13.8
Receiver Ready (
R
≈RDYA) .........................................................................2-12
2.14
Timer Signals ....................................................................................................2-12
2.14.1
Timer Gate (
TGATE2, TGATE1)................................................................2-12
2.14.2
Timer Input (TIN2, TIN1) ..............................................................................2-12
2.14.3
Timer Output (TOUT2, TOUT1)...................................................................2-12
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com




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