AT83EB5114 Atmel Corporation, AT83EB5114 Datasheet - Page 77

• Manufacturer Part Number: AT83EB5114
• Manufacturer: Atmel Corporation

Specifications of AT83EB5114

• Max. Operating Frequency: 24 MHz
• Cpu: 8051-12C
• Max I/o Pins: 11
• Adc Channels: 6
• Adc Resolution (bits): 10
• Adc Speed (ksps): 50
• Sram (kbytes): 0.25
• Eeprom (bytes): 256
• Operating Voltage (vcc): 3.0 to 3.6
• Timers: 4
• Mask Rom (kbytes): 4
• Watchdog: Yes

Reading the Flash Spaces
4311C–8051–02/08
Figure 36. Hardware Programming Procedure
User
The following procedure is used to read the User space and is summarized in Figure 37:
Extra Row
The following procedure is used to read the Extra Row space and is summarized in
Figure 37:
Hardware Security Byte
–
–
–
–
–
Map the User space by writing 00h in FCON register.
Read one byte in Accumulator by executing MOVC A,@A+DPTR with A= 0
& DPTR= 0000h to FFFFh.
Map the Extra Row space by writing 02h in FCON register.
Read one byte in Accumulator by executing MOVC A,@A+DPTR with A= 0
& DPTR= FF80h to FFFFh.
Clear FCON to unmap the Extra Row.
Flash Spaces Programming
Exec: MOVX @DPTR, A
Launch Programming
End Programming
FCON = 0Ch
Erase Mode
FCON = 00h
FCON= A4h
DPTR= 00h
FCON= 54h
ACC= Data
Data Load
Disable IT
Cleared?
Enable IT
FBusy
EA= 0
EA= 1
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