D R A F T — F O R I N
T E R N A L U S E O N L Y
48
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User Guide
CP3004-SA
3.3.5 Device Protection Register (DPROT)
The Device Protection Register holds the write protect signals for non-volatile devices.
Table 28: Device Protection Register (DPROT)
ADDRESS
0x284
BIT
7
6
5
4
3
2
1
0
NAME
SWP
Reserved
SFWP
JMP2
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 module write protection status:
0 = SATA Flash module write protection included in system write protection
1 = SATA Flash module write protection not included in system write protection
This bit is read-only if the system write protection bit is activated (SWP = ’1’).
2
JMP2
System write protection via configuration resistors JMP2:
0 = System not write protected via JMP2
1 = System write protected via JMP2
1
BSWP
System write protection via backplane (SYS_WP#):
0 = System not write protected via backplane
1 = System write protected via backplane
0
SSWP
System write protection via software:
0 = System devices not write protected via software
1 = System write protected via software
Writing a ’1’ to this bit clears it. If this bit is set, it cannot be cleared.
