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Register Descriptions
MVME7100ET Single Board Computer Programmer’s Reference (6806800K88B
)
30
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.
EEPROM_WP
EEPROM Write Protect. This bit is to provide protection against inadvertent
writes to the on-board EEPROM devices. Clearing this bit will enable writes to the
EEPROM devices. Setting this bit write protects the devices. The devices are write
protected following a reset.
BRD_RST
Board Reset. These bits are used to force a hard reset of the board. If a pattern is
written in bits 5-7 where bit 7 is set, bit 6 is cleared, and bit 5 is set (101), a hard
reset is generated. Any other pattern written in bits 5-7, does not generate a hard
reset. These bits are cleared automatically when the board reset has been
completed. These bits are always cleared during a read.
RSVD
Reserved for future implementation.
Table 3-4 Status Indicator Register
REG
Status Indicator Register - 0xF200 0002
BIT
7
6
5
4
3
2
1
0
Field
RSVD
RSVD
RSVD
RSVD
USR3
USR2
USR1
Y
USR1
R
OPER
R
R
R
R
R/W
R/W
R/W
R/W
RESET
0
0
0
0
0
0
0
1
USR1R
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.
USR1Y
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.
Summary of Contents for MVME7100ET
Page 1: ...MVME7100ET Single Board Computer Programmer s Reference P N 6806800K88B June 2014 ...
Page 10: ...MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 10 List of Figures ...
Page 24: ...Memory Maps MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 24 ...
Page 50: ...Register Descriptions MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 50 ...
Page 96: ...Related Documentation MVME7100ET Single Board Computer Programmer s Reference 6806800K88B 96 ...
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