Rainbow Electronics AT89C5131 - Manual (Page 34)

34
AT89C5131
4136A–USB–03/03
Registers Table 34. FCON (S:D1h)
Flash Control Register
Reset Value = 0000 0000b
7 6 5 4 3 2 1 0
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 33.)
3 FPS
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 32 or Table 33.
0 FBUSY
Flash Busy
Set by hardware when programming is in progress.
Clear by hardware when programming is done.
Can not be cleared by software.