Artesyn MVME3100 Single Board Computer Installation and Use (June 2014) - Manual (Page 111)

Memory Maps
MVME3100 Single Board Computer Installation and Use (6806800M28E) 111
6.1.7 System Indicator Register
The MVME3100 board provides a System Indicator register that may be read by the system
software to determine the state of the on-board status indicator LEDs or written to by system
software to illuminate the corresponding on-board LEDs.
BRD_FAIL: Board fail. This bit controls the board fail LED located on the front panel. A set
condition illuminates the front-panel LED and a cleared condition extinguishes the front-panel
LED.
USR1_LED: User LED 1. This bit controls the USR1 LED located on the front panel. A set
condition illuminates the front-panel LED and a cleared condition extinguishes the front-panel
LED.
USR2_LED: User LED 2. This bit controls the planar USR2 LED. A set condition illuminates the
LED and a cleared condition extinguishes the LED.
USR3_LED: User LED 3. This bit controls the planar USR3 LED. A set condition illuminates the
LED and a cleared condition extinguishes the LED.
RSVD: Reserved for future implementation.
Table 6-6 System Indicator Register
REG System Indicator Register - 0xE2000002
BIT 7 6 5 4 3 2 1 0
FIELD
RS
V
D
RS
V
D
RS
V
D
RS
V
D
U
SR3
U
SR2
U
SR1
BRD_F
AIL
OPER R R R R R/W R/W R/W R/W
RESET 0 0 0 0 0 0 0 1