Page 257
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
Summary of Contents for CEM2100/00
Page 2: ...2 ...
Page 3: ...BLOCK DIAGRAM ...
Page 4: ...WIRING DIAGRAM 4 ...
Page 5: ...CIRCUIT DIAGRAM MAIN BOARD 5 ...
Page 6: ...6 ...
Page 7: ......
Page 11: ...PCB LAYOUT MAIN BOARD TOP SIDE VIEW 11 ...
Page 12: ...PCB LAYOUT MAIN BOARD BOTTOM SIDE VIEW 12 ...
Page 13: ...PCB LAYOUT PANEL BOARD TOP SIDE VIEW ...
Page 14: ...14 PCB LAYOUT PANEL BOARD BOTTOM SIDE VIEW ...
Page 15: ...PCB LAYOUT REMOTE BOARD TOP SIDE VIEW 15 ...
Page 16: ...PCB LAYOUT REMOTE BOARD BOTTOM SIDE VIEW 16 ...
Page 17: ...PCB LAYOUT TUNER BOARD TOP SIDE VIEW 17 ...
Page 18: ...PCB LAYOUT TUNER BOARD BOTTOM SIDE VIEW 18 ...
Page 19: ...PCB LAYOUT SD BOARD TOP SIDE VIEW ...
Page 20: ...20 PCB LAYOUT CD CONNECTOR TOP SIDE VIEW ...
Page 21: ...PCB LAYOUT ISO BOARD BOTTOM SIDE VIEW 21 ...
Page 22: ...22 SET EXPLODER VIEW DRAWING ...
Page 23: ...1 of 2 CEM2100 Trouble shooting Trouble shooting Trouble shooting Trouble shooting ...
Page 33: ...7 0 6SHFLILFDWLRQ 6 VWHP EORFN GLDJUDP ...
Page 110: ...7 0 6SHFLILFDWLRQ 5HYLVLRQ KLVWRU 2 2 s u 2 u 2 7 t 2 2 2 S S 5 2 v 2 2 ...
Page 111: ...8 Bit Microcontroller TLCS 870 C Series T5CL8 ...
Page 113: ...Revision History Date Revision 2008 7 31 1 First Release ...
Page 114: ......
Page 122: ...viii ...
Page 126: ...Page 4 1 3 Block Diagram T5CL8 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 130: ...Page 8 1 4 Pin Names and Functions T5CL8 ...
Page 155: ...Page 33 T5CL8 ...
Page 156: ...Page 34 2 Operational Description 2 3 Reset Circuit T5CL8 ...
Page 186: ...Page 64 5 I O Ports 5 8 Port P7 P77 to P70 T5CL8 ...
Page 194: ...Page 72 6 Watchdog Timer WDT 6 3 Address Trap T5CL8 ...
Page 214: ...Page 92 8 16 Bit TimerCounter 1 TC1 8 3 Function T5CL8 ...
Page 270: ...Page 148 12 Asynchronous Serial interface UART1 12 9 Status Flag T5CL8 ...
Page 280: ...Page 158 13 Asynchronous Serial interface UART2 13 9 Status Flag T5CL8 ...
Page 332: ...Page 210 16 Serial Bus Interface I2C Bus Ver D SBI 16 6 Data Transfer of I2C Bus T5CL8 ...
Page 342: ...Page 220 17 10 bit AD Converter ADC 17 6 Precautions about AD Converter T5CL8 ...
Page 354: ...Page 232 19 Flash Memory 19 4 Access to the Flash Memory Area T5CL8 ...
Page 388: ...Page 266 21 Input Output Circuit 21 2 Input Output Ports T5CL8 ...
Page 397: ...Page 275 T5CL8 23 Package Dimensions LQFP64 P 1010 0 50D Rev 01 Unit mm ...
Page 398: ...Page 276 23 Package Dimensions T5CL8 ...
Page 400: ......
Page 428: ...TC94B14MFG 2010 01 12 28 Package LQFP80 P 1212 0 50F Weight 0 6 g Typical ...