17. KBox C-101 CPLD Specific Registers
17.4. SPI Flash Control Registers (SPIFCTRL)
Address
Bit
7
Name
Access
Reset
BITFIELD
1
SPIFORBU
17.5. LED Control / Status Register (LCTRLSR)
The LED Control / Status Register holds a series of bits defining the onboard configuration for the front panel General
Purpose LEDs and enables the user to switch on and off the front panel General Purpose LEDs.
Address
Bit
7
Name
LED_CMD
Access
R/W
Reset
0
BITFIELD
7
LED_CMD
6..4
LED_SEL
1..0
LED_COLOR
62
6
5
Reserved
-
-
Force use of backup SPI Flash:
0 = Normal operation (use COMe Flash)
1 = Force BIOS_DISx# to select carrier on-board SPI Flash
6
5
LED_SEL
R/W
000
LED Command
0 = Get LED
1 = Set LED
LED Select
000 = LED GP1
001 = LED GP2
010 = LED GP3
011 = LED GP4
1xx = nothing selected
Select LED color
00 – OFF
01 – Green
10 – Red
11 – Amber
KBox C-101 – User's Guide (Version 2.00)
0x10A
4
3
2
DESCRIPTION
0x10B
4
3
2
Reserved
-
-
DESCRIPTION
1
0
SPIFORBU
Res.
R/W
R/W
0
1
1
0
LED_COLOR
R/W
00
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