Rainbow Electronics T89C51AC2 - Manual (Page 39)

39
T89C51AC2
Rev. B – 19-Dec-01
9.4 Registers
FCON RegisterFCON (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 10.)
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 9 or Table 10.
0 FBUSY
FLASH Busy
Set by hardware when programming is in progress.
Clear by hardware when programming is done.
Can not be changed by software.