C8051F989-GM View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
C8051F989-GM Datasheet PDF : 322 Pages
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C8051F99x-C8051F98x
SFR Definition 14.3. PSCTL: Program Store R/W Control
Bit
7
6
5
4
3
2
1
0
Name
PSEE
PSWE
Type
R
R
R
R
R
R
R/W
R/W
Reset
0
0
0
0
0
0
0
0
SFR Page =All; SFR Address = 0x8F
Bit Name
Function
7:2 Unused Read = 000000b, Write = don’t care.
1 PSEE Program Store Erase Enable.
Setting this bit (in combination with PSWE) allows an entire page of Flash program
memory to be erased. If this bit is logic 1 and Flash writes are enabled (PSWE is logic
1), a write to Flash memory using the MOVX instruction will erase the entire page that
contains the location addressed by the MOVX instruction. The value of the data byte
written does not matter.
0: Flash program memory erasure disabled.
1: Flash program memory erasure enabled.
0 PSWE Program Store Write Enable.
Setting this bit allows writing a byte of data to the Flash program memory using the
MOVX write instruction. The Flash location should be erased before writing data.
0: Writes to Flash program memory disabled.
1: Writes to Flash program memory enabled; the MOVX write instruction targets Flash
memory.
158
Rev. 1.0
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