at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 37

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

FCON Register
7663B–8051–03/07
Table 22. FCON Register
FCON Register (S:D1h)
Flash Control Register
Reset Value= 0000 0000b
Number
FPL3
Bit
7-4
2-0
7
3
Mnemonic Description
FMOD2:0
FPL3:0
FPL2
FPS
Bit
6
Programming Launch Command Bits
Write 5Xh followed by AXh to launch the programming according to FMOD2:0.
(see Table 25.)
Flash Map Program Space
When this bit is set:
The MOVX @DPTR, A instruction writes in the columns latches space
When this bit is cleared:
The MOVX @DPTR, A instruction writes in the regular XDATA memory space
Flash Mode
These bits allow to select the target memory area and operation on FM0
See Table 24.
FPL1
5
FPL0
4
FPS
3
FMOD2
2
FMOD1
1
FMOD0
0
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