D R A F T — F O R I N
T E R N A L U S E O N L Y
42
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User Guide
CP3010-SA
3.3.1 Write Protection Register (WPROT)
The Write Protection Register holds the write protect signals for non-volatile devices.
Table 26: Write Protection Register (WPROT)
ADDRESS
0x284
BIT
7
6
5
4
3
2
1
0
NAME
SWP
Reserved
SFWP
DSWP
BSWP
SSWP
ACCESS
R
R
R/W
R
R
R/W
RESET
0
000
0
0
0
0
BITFIELD
DESCRIPTION
7
SWP
System write protection status:
0 = Onboard non-volatile memory devices not write protected
1 = Onboard non-volatile memory devices write protected
3
SFWP
SATA Flash write protection status:
0 = SATA Flash / CFast memory not included in system write protection
1 = SATA Flash / CFast memory included in system write protection
If this bit is programmed once, it cannot be reprorammed.
2
DSWP
This bit reflects the state of the system write protection via DIP switch SW1, switch 3:
0 = System not write protected via DIP switch
1 = System write protected
1
BSWP
This bit reflects the state of the system write protection via backplane (SYS_WP#):
0 = System not write protected via backplane
1 = System write protected
0
SSWP
This bit reflects the state of the system write protection via software:
0 = System devices not write protected via software
1 = System write protected
If this bit is programmed once, it cannot be reprogrammed.