công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

SH7052 bảng dữ liệu(PDF) 160 Page - Renesas Technology Corp

tên linh kiện SH7052
Giải thích chi tiết về linh kiện  SuperHTM RISC engine
PDF  919 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7052 bảng dữ liệu(HTML) 160 Page - Renesas Technology Corp

Back Button SH7052 Datasheet HTML 156Page - Renesas Technology Corp SH7052 Datasheet HTML 157Page - Renesas Technology Corp SH7052 Datasheet HTML 158Page - Renesas Technology Corp SH7052 Datasheet HTML 159Page - Renesas Technology Corp SH7052 Datasheet HTML 160Page - Renesas Technology Corp SH7052 Datasheet HTML 161Page - Renesas Technology Corp SH7052 Datasheet HTML 162Page - Renesas Technology Corp SH7052 Datasheet HTML 163Page - Renesas Technology Corp SH7052 Datasheet HTML 164Page - Renesas Technology Corp Next Button
Zoom Inzoom in Zoom Outzoom out
 160 / 919 page
background image
134
8.4
Waits between Access Cycles
When a read from a slow device is completed, data buffers may not go off in time to prevent data
conflicts with the next access. If there is a data conflict during memory access, the problem can be
solved by inserting a wait in the access cycle.
To enable detection of bus cycle starts, waits can be inserted between access cycles during
continuous accesses of the same CS space by negating the
CSn signal once.
8.4.1
Prevention of Data Bus Conflicts
For the two cases of write cycles after read cycles, and read cycles for a different area after read
cycles, waits are inserted so that the number of idle cycles specified by the IW31 to IW00 bits of
BCR2 occur. When idle cycles already exist between access cycles, only the number of empty
cycles remaining beyond the specified number of idle cycles are inserted.
Figure 8.7 shows an example of idles between cycles. In this example, one idle between CSn
space cycles has been specified, so when a CSm space write immediately follows a CSn space
read cycle, one idle cycle is inserted.
CK
CSn
CSm
RD
Data
CSn space read
CSm space write
Idle cycle
WRH, WRL
Address
T1
T2
T1
T2
Tidle
Figure 8.7 Idle Cycle Insertion Example



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


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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