Publication No. 500-9300527837-000 Rev. A.0
FPGA Registers 63
6.8 BMM/BMC Control Register (0x620)
6.9 LED Control Register (0x622)
6.10 BIOS/SPI Control Register (0x625)
Bits
Read/Write Description
Default
7 to 5
Read only
Reserved
000
b
4
Read only
Reserved
0
3
Read only
Reserved
1
2
Read only
Reserved
1
1
Read only
Reserved
0
0
Read only
Reserved
0
Bits
Read/Write Description
Default
7
Read/Write BIT Pass LED (DS404):
1 = LED lit
0 = LED not lit
0 (sticky on BIT reset)
6
Read only
a
a.
It is not possible to control the BIT Fail LED directly; control is only
possible via the BMM.
BIT Fail LED (DS401)
0
5
Read/Write BIT Status 1 LED (DS402):
1 = LED lit
0 = LED not lit
0 (sticky on BIT reset)
4
Read/Write BIT Status 2 LED (DS403):
1 = LED lit
0 = LED not lit
0 (sticky on BIT reset)
3 to 0
Read only
Reserved
0000
b
Bits
Read/Write Description
Default
7
Read/Write Select the other boot device:
1 = Select the opposite boot device to that from which the board was booted
(i.e., if the board was booted from the recovery device, select the main device, and vice versa)
0 = Select the boot device from which the board was booted
0
6 to 0
Read only
Reserved
0000000
b