数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

STM32U545NET6QTR 数据表(PDF) 25 Page - STMicroelectronics

部件名 STM32U545NET6QTR
功能描述  Ultra-low-power Arm® Cortex®-M33 MCUTrustZone®FPU,240 DMIPS, 512 KB flash memory, 274 KB SRAM, crypto
PDF  283 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32U545NET6QTR 数据表(HTML) 25 Page - STMicroelectronics

Back Button STM32U545NET6QTR Datasheet HTML 21Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 22Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 23Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 24Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 25Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 26Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 27Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 28Page - STMicroelectronics STM32U545NET6QTR Datasheet HTML 29Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 25 / 283 page
background image
DS14216 Rev 1
25/283
STM32U545xx
Functional overview
88
3.4.2
Additional flash memory protections when TrustZone activated
When the TrustZone security is enabled through option bytes, the whole flash memory is
secure after reset and the following protections are available:
•
non-volatile watermark-based secure flash memory area
The secure area can be accessed only in Secure mode. One area per bank can be
selected with a page granularity.
•
secure HDP (hide protection area)
It is part of the flash memory secure area and can be protected to deny an access to
this area by any data read, write and instruction fetch. For example, a software code in
the secure flash memory hide protection area can be executed only once and deny any
OTP
0.5
Yes
Yes(7)
N/A
Yes
Yes(7)
N/A
1Yes
Yes(7)
N/A
Yes
Yes(7)
N/A
2Yes
Yes(7)
N/A
N/A
N/A
N/A
Backup registers
0.5
Yes
Yes
N/A
Yes(2)
Yes(2)
N/A(8)
1
Yes
Yes
N/A
No
No
N/A(8)
2
Yes
Yes
N/A
N/A
N/A
N/A
SRAM2/backup
RAM
0.5
Yes
Yes
N/A
Yes(2)
Yes(2)
N/A(9)
1
Yes
Yes
N/A
No
No
N/A(9)
2
Yes
Yes
N/A
N/A
N/A
N/A
OTFDEC regions
(Octo-SPI)
0.5
Yes
Yes
Yes
No(10)
Yes
Yes
1
Yes
Yes
Yes
No(10)
Yes
Yes
2
Yes
Yes
Yes
N/A
N/A
N/A
1. When the protection level 2 is active, the debug port and the bootloader mode are disabled.
2. Depends on TrustZone security access rights.
3. The system memory is only read-accessible, whatever the protection level (0, 1 or 2) and execution mode.
4. Option bytes are only accessible through the flash memory registers and OPSTRT bit.
5. The flash main memory is erased when the RDP option byte regresses from level 1 to level 0.
6. SWAP_BANK option bit can be modified.
7. OTP can only be written once.
8. The backup registers are erased when RDP changes from level 1 to level 0.
9. All SRAMs are erased when RDP changes from level 1 to level 0.
10. The OTFDEC keys are erased when the RDP option byte changes from level 1 to level 0.
Table 4. Access status versus protection level and execution modes when TZEN = 1 (continued)
Area
RDP
level
User execution
(boot from flash memory)
Debug/ bootloader(1)
Read
Write
Erase
Read
Write
Erase



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


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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