T89C51CC02 Atmel, T89C51CC02 Datasheet - Page 26

• Manufacturer Part Number: T89C51CC02
• Description: 8-Bit MCU
• Manufacturer: Atmel

T89C51CC02
7.3.7. Reading the FLASH Spaces
User
The following procedure is used to read the User space and is summarized in Figure 11:
Extra Row
The following procedure is used to read the Extra Row space and is summarized in Figure 11:
Hardware Security
The following procedure is used to read the Hardware
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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.
Map the Hardware Security space by writing 04h in FCON register.
Read the byte in Accumulator by executing MOVC A,@A+DPTR with A= 0 & DPTR= 0000h.
Figure 11. Reading Procedure
Preliminary
Exec: MOVC A, @A+DPTR
FLASH Spaces Mapping
FCON= 00000xx0b
FLASH Spaces
DPTR= Address
Erase Mode
FCON = 00h
Data Read
Reading
ACC= 0
Security
space and is summarized in Figure 11:
Rev.A - May 17, 2001