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T
5CL8
Figure 20-5 Password Comparison
20.10.1Password String
The password string transmitted from the external controller is compared with the specified data in the flash
memory. When the password string is not matched to the data in the flash memory, the device enters the halt
condition due to the password error.
20.10.2Handling of Password Error
If a password error occurs, the device enters the halt condition. In this case, reset the device to reactivate the
serial PROM mode.
20.10.3Password Management during Program Development
If a program is modified many times in the development stage, confusion may arise as to the password.
Therefore, it is recommended to use a fixed password in the program development stage.
Example :Specify PNSA to F000H, and the password string to 8 bytes from address F001H
(PCSA becomes F001H.)
Password Section code abs = 0F000H
DB
08H
: PNSA definition
DB
“CODE1234”
: Password string definition
08H
01H
02H
03H
04H
05H
08H
F012H
F107H
F108H
Flash memory
F109H
F10AH
F10BH
F10CH
UART
F0H 12H F1H 07H 01H 02H 03H 04H 05H 06H 07H 08H
PNSA
PCSA
Password string
06H
07H
F10DH
F10EH
"08H" becomes
the umber of
passwords
8 bytes
Compare
Example
PNSA = F012H
PCSA = F107H
Password string = 01H,02H,03H,04H,05H
06H,07H,08H
RXD pin
Содержание CEM2100/00
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Страница 3: ...BLOCK DIAGRAM ...
Страница 4: ...WIRING DIAGRAM 4 ...
Страница 5: ...CIRCUIT DIAGRAM MAIN BOARD 5 ...
Страница 6: ...6 ...
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Страница 11: ...PCB LAYOUT MAIN BOARD TOP SIDE VIEW 11 ...
Страница 12: ...PCB LAYOUT MAIN BOARD BOTTOM SIDE VIEW 12 ...
Страница 13: ...PCB LAYOUT PANEL BOARD TOP SIDE VIEW ...
Страница 14: ...14 PCB LAYOUT PANEL BOARD BOTTOM SIDE VIEW ...
Страница 15: ...PCB LAYOUT REMOTE BOARD TOP SIDE VIEW 15 ...
Страница 16: ...PCB LAYOUT REMOTE BOARD BOTTOM SIDE VIEW 16 ...
Страница 17: ...PCB LAYOUT TUNER BOARD TOP SIDE VIEW 17 ...
Страница 18: ...PCB LAYOUT TUNER BOARD BOTTOM SIDE VIEW 18 ...
Страница 19: ...PCB LAYOUT SD BOARD TOP SIDE VIEW ...
Страница 20: ...20 PCB LAYOUT CD CONNECTOR TOP SIDE VIEW ...
Страница 21: ...PCB LAYOUT ISO BOARD BOTTOM SIDE VIEW 21 ...
Страница 22: ...22 SET EXPLODER VIEW DRAWING ...
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Страница 113: ...Revision History Date Revision 2008 7 31 1 First Release ...
Страница 114: ......
Страница 122: ...viii ...
Страница 126: ...Page 4 1 3 Block Diagram T5CL8 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 130: ...Page 8 1 4 Pin Names and Functions T5CL8 ...
Страница 155: ...Page 33 T5CL8 ...
Страница 156: ...Page 34 2 Operational Description 2 3 Reset Circuit T5CL8 ...
Страница 186: ...Page 64 5 I O Ports 5 8 Port P7 P77 to P70 T5CL8 ...
Страница 194: ...Page 72 6 Watchdog Timer WDT 6 3 Address Trap T5CL8 ...
Страница 214: ...Page 92 8 16 Bit TimerCounter 1 TC1 8 3 Function T5CL8 ...
Страница 270: ...Page 148 12 Asynchronous Serial interface UART1 12 9 Status Flag T5CL8 ...
Страница 280: ...Page 158 13 Asynchronous Serial interface UART2 13 9 Status Flag T5CL8 ...
Страница 332: ...Page 210 16 Serial Bus Interface I2C Bus Ver D SBI 16 6 Data Transfer of I2C Bus T5CL8 ...
Страница 342: ...Page 220 17 10 bit AD Converter ADC 17 6 Precautions about AD Converter T5CL8 ...
Страница 354: ...Page 232 19 Flash Memory 19 4 Access to the Flash Memory Area T5CL8 ...
Страница 388: ...Page 266 21 Input Output Circuit 21 2 Input Output Ports T5CL8 ...
Страница 397: ...Page 275 T5CL8 23 Package Dimensions LQFP64 P 1010 0 50D Rev 01 Unit mm ...
Страница 398: ...Page 276 23 Package Dimensions T5CL8 ...
Страница 400: ......
Страница 403: ...TC94B14MFG 2010 01 12 3 Pin Layout and Block Diagram Top View Pin Layout Top View TC94B14MFG Top View TEST1 ...
Страница 428: ...TC94B14MFG 2010 01 12 28 Package LQFP80 P 1212 0 50F Weight 0 6 g Typical ...