Publication No. PPC11A-HRM/1
Control and Status Registers 99
5.33
SSD Status Register (Offset 0x6CB)
Bits
Description
Default
7 to 1
SSD7:1 write protect status:
0 = SSD is not write protected
0000000
b
0
SSD0 write protect status:
1 = SSD is write protected
0 = SSD is not write protected
N/A
5.34
Write Protection Status Register (Offset 0x6CC)
Bit 3 is writeable; all other bits are read-only.
Bit Description
Default
7
PCIe switch configuration EEPROM write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
6
Ethernet 2/3 NIC configuration Flash write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
5
SPD EEPROM Flash write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
The SPD data is embedded within the FPGA configuration data.
It is therefore always write protected (except when updating the FPGA data)
N/A
4
FPGA configuration data write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
3
Main NOR Flash write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
The main NOR Flash write protection relies mainly on software sector locking.
NOR Flash protection must be explicitly removed by writing a zero here
1
2
Recovery SPI Flash write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
1
NVRAM write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
0
EEPROM DIP switches write protection status:
1 = Hardware write protection is active
0 = Hardware write protection is not active
N/A
Содержание PPC11A
Страница 1: ...Hardware Reference Manual PPC11A 6U VME Single Board Computer Edition 1 Publication No PPC11A HRM 1 ...
Страница 27: ...Publication No PPC11A HRM 1 Functional Description 27 Figure 4 2 Block Diagram T2081 ...
Страница 113: ...Publication No PPC11A HRM 1 Connectors 113 Figure 6 2 Rear Connector Position ...