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

X  

Preview PDF HTML

SN250 bảng dữ liệu(PDF) 23 Page - STMicroelectronics

tên linh kiện SN250
Giải thích chi tiết về linh kiện  Single-chip ZigBee/802.15.4 solution
PDF  130 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SN250 bảng dữ liệu(HTML) 23 Page - STMicroelectronics

Back Button SN250 Datasheet HTML 19Page - STMicroelectronics SN250 Datasheet HTML 20Page - STMicroelectronics SN250 Datasheet HTML 21Page - STMicroelectronics SN250 Datasheet HTML 22Page - STMicroelectronics SN250 Datasheet HTML 23Page - STMicroelectronics SN250 Datasheet HTML 24Page - STMicroelectronics SN250 Datasheet HTML 25Page - STMicroelectronics SN250 Datasheet HTML 26Page - STMicroelectronics SN250 Datasheet HTML 27Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 23 / 130 page
background image
SN250
Functional description—system modules
23/130
The XAP2b clock speed is 12MHz. When used with the ZNet stack, code is loaded into
Flash memory over the air or by a serial link using a built-in bootloader in a reserved area of
the Flash. Alternatively, code may be loaded via the SIF interface with the assistance of
RAM-based utility routines also loaded via SIF.
The XAP2b in the SN250 has also been enhanced to support two separate protection
levels. The ZNet stack runs in System Mode, which allows full, unrestricted access to all
areas of the chip, while application code runs in Application Mode. When running in
Application Mode, writing to certain areas of memory and registers is restricted to prevent
common software bugs from interfering with the operation of the ZNet stack. These errant
writes are captured and details are reported to the developer to assist in tracking down and
fixing these issues.
6.6
Embedded memory
As shown in Figure 3, the program side of the address space contains mappings to both
integrated Flash and RAM blocks.
Figure 3.
Program address space
The data side of the address space contains mappings to the same Flash and RAM blocks,
as well as registers and a separate Flash information area, as shown in Figure 4.



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