D R A F T — F O R I N
T E R N A L U S E O N L Y
56
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User Guide
CP3004-SA
3.3.15 LED Control Register (LCTRL)
The LED Control Register enables the user to switch on and off the front panel General Purpose LEDs.
Note:
The LED Control Register can only be used if the General Purpose LEDs indicated in the “LED
Configuration Register” (see Table 38) are configured in General Purpose Mode. The status
of certain LEDs can be obtained by writing a “Get LEDX” command where “x” is the LED
number (color bits are ignored) followed by a simple read.
Table 38: LED Control Register (LCTRL)
ADDRESS
0x291
BIT
7
6
5
4
3
2
1
0
NAME
LCMD
LCOL
ACCESS
R/W
R/W
RESET
0000
0000
BITFIELD
DESCRIPTION
7 - 4
LCMD
LED command:
0000 = Get LED0
1000 = Set LED0
0001 = Get LED1
1001 = Set LED1
0010 = Get LED2
1010 = Set LED2
0011 = Get LED3
1011 = Set LED3
0100 - 0111 = Reserved
1100 - 1111 = Reserved
3 - 0
LCOL
LED color:
0000 = Off
0001 = Green
0010 = Red
0011 = Red+Green
0100 - 1111 = Reserved