User's Manual

Maps and Registers System Configuration Registers
118 SPARC/CPU−56T
LED Control Register 2
This register is used to switch between the different operation modes of LED 2.
Address: 1FF.F160.0110
16
Table 28: LED Control Register 2
Bit Name Description Default Access
4..0 LED_DISPLAY User LED mode
00000
2
: OFF
00001
2
a : Green
00010
2
a : Red
00011
2
a : Weak red
00101
2
a : Slow blinking green (1/2 Hz)
00110
2
a : Slow blinking red
00111
2
a : Slow blinking weak red
01001
2
a : Blinking green (1 Hz)
01010
2
a : Blinking red
01011
2
a : Blinking weak red
01101
2
a : Fast blinking green (2 Hz)
01110
2
a : Fast blinking reda
01111
2
a : Fast blinking weak reda
00000
2
r/w
aa aa IDE activity
10011
2
: IDE 1/2a
aa
aa aa Ethernet activity
11000
2
: Ethernet 1a
11001
2
: Ethernet 2a
11010
2
: Ethernet 3a
11011
2
: Ethernet 4a
11100
2
: Ethernet 1/3a
11101
2
: Ethernet 2/4
11111
2
: Ethernet 1/2/3/4
aa
aa aa At all other values, the LED is OFF.aaaaa
7..5
Reserved These bits are always zero. r
LED Control Register 3
This register is used to switch between the different operation modes of LED 3.