전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

VR4102 데이터시트(PDF) 150 Page - NEC

부품명 VR4102
상세설명  64/32-bit Microprocessor
PDF  701 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

VR4102 데이터시트(HTML) 150 Page - NEC

Back Button VR4102 Datasheet HTML 146Page - NEC VR4102 Datasheet HTML 147Page - NEC VR4102 Datasheet HTML 148Page - NEC VR4102 Datasheet HTML 149Page - NEC VR4102 Datasheet HTML 150Page - NEC VR4102 Datasheet HTML 151Page - NEC VR4102 Datasheet HTML 152Page - NEC VR4102 Datasheet HTML 153Page - NEC VR4102 Datasheet HTML 154Page - NEC Next Button
Zoom Inzoom in Zoom Outzoom out
 150 / 701 page
background image
CHAPTER 5 MEMORY MANAGEMENT SYSTEM
150
5.5.6 Config Register (16)
The Config register indicates and specifies various configuration options selected on VR4102 processors.
Some configuration options, as defined by the EC and BE fields, are set by the hardware during Cold Reset and
are included in the Config register as read-only status bits for the software to access. Other configuration options
(AD, EP, and K0 fields) can be read/written and controlled by software; on Cold Reset these fields are undefined.
Since only a subset of the VR4000 options are available in the VR4102, some bits are set to constants (e.g., bits
14:13) that were variable in the VR4000. The Config register should be initialized by software before caches are
used. Figure 5-17 shows the format of the Config register.
Figure 5-17. Config Register Format
1
1
1
23
5
1
1
22
17
18
15
16
14
1
3
4
28
30
24
27
31
0
EC
EP
AD
0
1
0
BE
1
1
13
0
1
12
CS
3
11
9
IC
3
8
6
DC
3
5
3
0
3
2
0
K0
EC : System interface clock ratio (read only)
000
o Processor clock frequency divided by 2
Others
o Reserved
EP : Transfer data pattern (cache write-back pattern)
0000
o DD: 1 word/1 cycle
Others
o Reserved
AD : Accelerate data mode setting
0
o VR4000 Series compatible mode
1
o Reserved
BE : BigEndianMem. Indicates endian.
0
o Little endian
1
o Reserved
CS : Cache size mode indication
0
o Reserved
1
o Cache of small capacity
IC : Instruction cache size indication. The size is 2
(10+IC) bytes when CS bit is set to 1.
2
o 4 Kbytes
Others
o Reserved
DC : Data cache size indication. The size is 2
(10+DC) bytes when CS bit is set to 1.
0
o 1 Kbytes
Others
o Reserved
K0 : kseg0 cache coherency algorithm
010
o Uncached
Others
o Cached
1: 1 is returned when it is read.
0: 0 is returned when it is read.



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


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
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