データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

MC68340 データシート(PDF) 67 Page - Freescale Semiconductor, Inc

部品番号 MC68340
部品情報  Integrated Processor with DMA User?셲 Manual
Download  441 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  FREESCALE [Freescale Semiconductor, Inc]
ホームページ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC68340 データシート(HTML) 67 Page - Freescale Semiconductor, Inc

Back Button MC68340 Datasheet HTML 63Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 64Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 65Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 66Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 67Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 68Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 69Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 70Page - Freescale Semiconductor, Inc MC68340 Datasheet HTML 71Page - Freescale Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 67 / 441 page
background image
3- 18
MC68340 USER’S MANUAL
MOTOROLA
3.3.2 Write Cycle
During a write cycle, the MC68340 transfers data to memory or a peripheral device. Figure
3-8 is a flowchart of a word write cycle.
1. NEGATE DS AND AS
2. REMOVE DATA FROM D15–D0
BUS MASTER
SLAVE
ADDRESS DEVICE
1. SET R/W TO WRITE
2. DRIVE ADDRESS ON A31–A0
3. DRIVE FUNCTION CODE ON FC3–FC0
4. DRIVE SIZE PINS FOR OPERAND SIZE
5. ASSERT AS
6. PLACE DATA ON D15–D0
7. ASSERT DS
TERMINATE OUTPUT TRANSFER
START NEXT CYCLE
1. DECODE ADDRESS
2. LATCH DATA FROM D15–D0
ACCEPT DATA
3. ASSERT DSACKx SIGNALS
TERMINATE CYCLE
1. NEGATE DSACKx
Figure 3-8. Word Write Cycle Flowchart
State 0—The write cycle starts in S0. During S0, the MC68340 places a valid address on
A31–A0 and valid function codes on FC3–FC0. The function codes select the address
space for the cycle. The MC68340 drives R/
W low for a write cycle. SIZ1/SIZ0 become
valid, indicating the number of bytes to be transferred.
State 1—One-half clock later during S1, the MC68340 asserts
AS, indicating a valid
address on the address bus.
State 2—During S2, the MC68340 places the data to be written onto D15–D0, and
samples
DSACK
≈ at the end of S2.
State 3—The MC68340 asserts
DS during S3, indicating that data is stable on the data
bus. As long as at least one of the
DSACK
≈ signals is recognized by the end of S2
(meeting the asynchronous input setup time requirement), the cycle terminates one clock
later. If
DSACK
≈ is not recognized by the start of S3, the MC68340 inserts wait states
instead of proceeding to S4 and S5. To ensure that wait states are inserted, both
DSACK1 and DSACK0 must remain negated throughout the asynchronous input setup
and hold times around the end of S2. If wait states are added, the MC68340 continues to
sample
DSACK
≈ on the falling edges of the clock until one is recognized. The selected
device uses R/
W, SIZ1/SIZ0, and A0 to latch data from the appropriate byte(s) of D15–D8
and D7–D0. SIZ1/SIZ0 and A0 select the bytes of the data bus. If it has not already done
so, the device asserts
DSACK
≈ to signal that it has successfully stored the data.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


同様の部品番号 - MC68340

メーカー部品番号データシート部品情報
logo
Motorola, Inc
MC68340 MOTOROLA-MC68340 Datasheet
701Kb / 24P
   Integrated Processor Unit
MC68340 MOTOROLA-MC68340 Datasheet
2Mb / 962P
   QUad Integrated Communications Controller Users Manual
logo
Freescale Semiconductor...
MC68340 FREESCALE-MC68340 Datasheet
52Kb / 10P
   Integrated Processor With DMA
MC68340 FREESCALE-MC68340 Datasheet
2Mb / 441P
   Integrated Processor with DMA User?셲 Manual
MC68340 FREESCALE-MC68340 Datasheet
220Kb / 10P
   Integrated Processor With DMA
More results

同様の説明 - MC68340

メーカー部品番号データシート部品情報
logo
Freescale Semiconductor...
MC68340FE16E FREESCALE-MC68340FE16E Datasheet
2Mb / 441P
   Integrated Processor with DMA User?셲 Manual
logo
Motorola, Inc
MC68340AB16E MOTOROLA-MC68340AB16E Datasheet
2Mb / 441P
   Integrated Processor with DMA User?셲 Manual
logo
Freescale Semiconductor...
11242 FREESCALE-11242 Datasheet
2Mb / 441P
   Integrated Processor with DMA User s Manual
logo
Motorola, Inc
MC68302 MOTOROLA-MC68302 Datasheet
1Mb / 480P
   Integrated Multiprotocol Processor User?셲 Manual
MC68302 MOTOROLA-MC68302 Datasheet
1Mb / 480P
   Integrated Multiprotocol Processor User?셲 Manual
logo
Freescale Semiconductor...
MC68340CAB16E FREESCALE-MC68340CAB16E Datasheet
2Mb / 441P
   Integrated Processor with DMA Users Manual
logo
Motorola, Inc
MCF5307AI66B MOTOROLA-MCF5307AI66B Datasheet
5Mb / 484P
   Integrated Microprocessor User?셲 Manual
logo
Freescale Semiconductor...
MC68340AG16E FREESCALE-MC68340AG16E Datasheet
220Kb / 10P
   Integrated Processor With DMA
logo
Motorola, Inc
MC68340P MOTOROLA-MC68340P Datasheet
52Kb / 10P
   Integrated Processor With DMA
logo
Freescale Semiconductor...
MC68340FT16E FREESCALE-MC68340FT16E Datasheet
52Kb / 10P
   Integrated Processor With DMA
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com