Electronic Components Datasheet Search
  New Zealand  ▼
ALLDATASHEET.CO.NZ

X  

Preview PDF HTML

H8/3002 Datasheet(PDF) 235 Page - Renesas Technology Corp

Part # H8/3002
Description  Microcomputer
PDF  700 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3002 Datasheet(HTML) 235 Page - Renesas Technology Corp

Back Button H8/3002 Datasheet HTML 231Page - Renesas Technology Corp H8/3002 Datasheet HTML 232Page - Renesas Technology Corp H8/3002 Datasheet HTML 233Page - Renesas Technology Corp H8/3002 Datasheet HTML 234Page - Renesas Technology Corp H8/3002 Datasheet HTML 235Page - Renesas Technology Corp H8/3002 Datasheet HTML 236Page - Renesas Technology Corp H8/3002 Datasheet HTML 237Page - Renesas Technology Corp H8/3002 Datasheet HTML 238Page - Renesas Technology Corp H8/3002 Datasheet HTML 239Page - Renesas Technology Corp Next Button
Zoom Inzoom in Zoom Outzoom out
 235 / 700 page
background image
8.4.8 DMAC Bus Cycle
Figure 8-13 shows an example of the timing of the basic DMAC bus cycle. This example shows a
word-size transfer from a 16-bit two-state access area to an 8-bit three-state access area. When the
DMAC gets the bus from the CPU, after one dead cycle (Td), it reads from the source address and
writes to the destination address. During these read and write operations the bus is not released
even if there is another bus request. DMAC cycles comply with bus controller settings in the same
way as CPU cycles.
Figure 8-13 DMA Transfer Bus Timing (Example)
ø
RD
HWR
LWR
T1
T2
T1
T2
Td
T1
T2
T1
T2
T3
T1
T2
T3
T1
T2
T1
T2
CPU cycle
DMAC cycle (word transfer)
CPU cycle
Source
address
Destination address
Address
bus
221



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


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
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