3.1.3
Status Indicator Register
The MVME7100ET provides a Status 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.
Table 3-4
REG
BIT
Field
OPER
RESET 0
USR1R
USR1Y
USR2_LED
USR3_LED
RSVD
MVME7100ET Single Board Computer Programmer's Reference (6806800K88C)
Status Indicator Register
Status Indicator Register - 0xF200 0002
7
6
5
RSVD
RSVD
RSVD
R
R
R
0
0
User LED 1 RED. This bit is used to control the USR1 bi-color LED located
on the front panel. A set condition illuminates the red segment of the front
panel LED and a cleared condition extinguishes the red segment of the
front panel LED.
User LED 1 Yellow. This bit is used to control the USR1 bi-color LED
located on the front panel. A set condition illuminates the yellow segment
of the front panel LED and a cleared condition extinguishes the yellow
segment of the front panel LED.
User LED 2. This bit is used to control the planar USR2 LED. A set
condition illuminates the LED and a cleared condition extinguishes the
LED.
User LED 3. This bit is used to control the planar USR3 LED. A set
condition illuminates the LED and a cleared condition extinguishes the
LED.
Reserved for future implementation
Register Descriptions
4
3
2
RSVD
USR3
USR2
R
R/W
R/W
0
0
0
1
0
USR1
USR1
Y
R
R/W
R/W
0
1
31
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