Publication No. SBC329-HRM/1
FPGA Registers 103
6.46 SSD Status Register (0x6CB)
SSD write protection is set by the
Bits
Description
Default
7 to 1
SSD7 to SSD1 write protect status:
SSD7 to SSD1 are not supported
0000000
b
0
SSD0 write protect status:
0 = SSD0 is write protected
1 = SSD0 is not write protected
N/A
6.47 Write Protection Status Register (0x6CC)
Bits Description
Default
7
PCIe switch configuration EEPROM write protection status
1, 2, 3
:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
6
Ethernet controller (ETH1 and ETH2) configuration Flash write protection status
1, 2
:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
5
SPD EEPROM write protection status
4
:
1 = Write protection is active
0 = Write protection is not active
N/A
4
Reserved
0
3
Boot SPI Flash (main) write protection status
1, 2
:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
2
Boot SPI Flash (recovery) write protection status
1, 2
:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
1
NVRAM write protection status
5
:
1 = Write protection is active
0 = Write protection is not active
N/A
0
Serial EEPROM DIP switch write protection status
2
:
1 = Write protection is active
0 = Write protection is not active
N/A
1.
This bit only reflects the hardware write protection status. Software can only write protect/enable the devices
when the hardware write protection is clear.
2.
Hardware protection is not active when
is fitted and the NVMRO backplane signal is negated.
3.
Software write protection can be controlled in the BIOS setup utility.
4.
Write protection is not active when
is fitted and the NVMRO backplane signal is negated
5.
NVRAM write protection is set by the serial EEPROM DIP switch, which can be controlled in the BIOS setup
utility.