Datasheet

43
T89C51AC2
4127D–8051–02/03
Registers FCON RegisterFCON (S:D1h)
Flash Control Register
Reset Value = 0000 0000b
76543210
FPL3 FPL2 FPL1 FPL0 FPS FMOD1 FMOD0 FBUSY
Bit
Number
Bit
Mnemonic Description
7-4 FPL3:0
Programming Launch Command Bits
Write 5Xh followed by AXh to launch the programming according to FMOD1:0
(see Table 24)
3FPS
Flash Map Program Space
Set to map the column latch space in the data memory space.
Clear to re-map the data memory space.
2-1 FMOD1:0
Flash Mode
See Table 23 or Table 24.
0FBUSY
Flash Busy
Set by hardware when programming is in progress.
Clear by hardware when programming is done.
Can not be changed by software.