Electronic Components Datasheet Search
  British  ▼
ALLDATASHEET.CO.UK

X  

Preview PDF HTML

H8SX/1663 Datasheet(PDF) 941 Page - Renesas Technology Corp

Part # H8SX/1663
Description  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1158 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8SX/1663 Datasheet(HTML) 941 Page - Renesas Technology Corp

Back Button H8SX/1663 Datasheet HTML 937Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 938Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 939Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 940Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 941Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 942Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 943Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 944Page - Renesas Technology Corp H8SX/1663 Datasheet HTML 945Page - Renesas Technology Corp Next Button
Zoom Inzoom in Zoom Outzoom out
 941 / 1158 page
background image
Section 21 Flash Memory (0.18-
µm F-ZTAT Version)
Rev.1.00 Jun. 07, 2006 Page 889 of 1102
REJ09B0294-0100
(4) Flash Key Code Register (FKEY)
FKEY is a register for software protection that enables to download the on-chip program and
perform programming/erasing of the flash memory.
7
K7
0
R/W
6
K6
0
R/W
5
K5
0
R/W
4
K4
0
R/W
3
K3
0
R/W
0
K0
0
R/W
2
K2
0
R/W
1
K1
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial
Value
R/W
Description
7
6
5
4
3
2
1
0
K7
K6
K5
K4
K3
K2
K1
K0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Key Code
When H'A5 is written to FKEY, writing to the SCO bit in
FCCS is enabled. When a value other than H'A5 is
written, the SCO bit cannot be set to 1. Therefore, the
on-chip program cannot be downloaded to the on-chip
RAM.
Only when H'5A is written can programming/erasing of
the flash memory be executed. When a value other than
H'5A is written, even if the programming/erasing
program is executed, programming/erasing cannot be
performed.
H'A5: Writing to the SCO bit is enabled. (The SCO bit
cannot be set to 1 when FKEY is a value other
than H'A5.)
H'5A: Programming/erasing of the flash memory is
enabled. (When FKEY is a value other than
H'A5, the software protection state is entered.)
H'00: Initial value



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