Z8F1601 Datasheet, PDF (163/246 Pages) Zilog, Inc. – Z8 Encore Microcontrollers with Flash Memory and 10-Bit A/D Converter

Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
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145
Flash Status Register
The Flash Status register indicates the current state of the Flash Controller. This register
can be read at any time. The Read-only Flash Status Register shares its Register File
address with the Write-only Flash Control Register.
Table 86. Flash Status Register (FSTAT)
BITS
7
6
5
4
3
2
1
0
FIELD
Reserved
FSTAT
RESET
0
0
0
0
0
0
0
0
R/W
R
R
R
R
R
R
R
R
ADDR
FF8H
Reserved
These bits are reserved and must be 0.
FSTAT—Flash Controller Status
000000 = Flash Controller locked.
000001 = First unlock command received.
000010 = Flash Controller unlocked (second unlock command received).
001xxx = Program operation in progress.
010xxx = Page erase operation in progress.
100xxx = Mass erase operation in progress.
PS017610-0404
Flash Memory