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Registers – Rainbow Electronics T89C5115 User Manual

Page 37

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37

T89C5115

4128A–8051–04/02

Registers

FCON Register
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 21.)

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 20 or Table 21.

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.