Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

7721 Datasheet(PDF) 290 Page - Renesas Technology Corp

Part # 7721
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  577 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7721 Datasheet(HTML) 290 Page - Renesas Technology Corp

Back Button 7721 Datasheet HTML 286Page - Renesas Technology Corp 7721 Datasheet HTML 287Page - Renesas Technology Corp 7721 Datasheet HTML 288Page - Renesas Technology Corp 7721 Datasheet HTML 289Page - Renesas Technology Corp 7721 Datasheet HTML 290Page - Renesas Technology Corp 7721 Datasheet HTML 291Page - Renesas Technology Corp 7721 Datasheet HTML 292Page - Renesas Technology Corp 7721 Datasheet HTML 293Page - Renesas Technology Corp 7721 Datasheet HTML 294Page - Renesas Technology Corp Next Button
Zoom Inzoom in Zoom Outzoom out
 290 / 577 page
background image
7721 Group User’s Manual
13-11
DMA CONTROLLER
13.2.3 DMAC control register H
Figure 13.2.5 shows the structure of DMAC control register H. Each of bits 0–3 is a software DMAi (i =
0 to 3) request bit, which corresponds to each channel. When a software DMA source is selected as a DMA
request source, each of these bits is valid. (Refer to “13.3.2 DMA requests.”) Bits 4–7 are described in
section “13.3.1 DMA enabling.”
Fig. 13.2.5 Structure of DMAC control register H
13.2 Block description
1 : DMA request
(Valid when software DMA source
is selected.)
The value is “0” at reading.
Bit
Bit name
Functions
At reset
RW
0
1
Software DMA0 request bit
0
0 : Disabled
1 : Enabled
0
DMAC control register H (Address 6916)
b1
b0
b2
b3
b4
b5
b6
b7
WO
RW
0WO
0
RW
4
5
6
7
DMA0 enable bit
0RW
0
RW
0
0
WO
WO
Software DMA1 request bit
Software DMA2 request bit
Software DMA3 request bit
2
3
DMA0 enable bit
DMA1 enable bit
DMA2 enable bit
DMA3 enable bit
Note: When any of bits 4 to 7 is set to “1,” use the CLB or SEB instruction for writing to this
register.



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