System Status Register; Table 6-4 System Status Register - SMART Embedded Computing MVME3100 Installation And Use Manual

6.2.5

System Status Register

The MVME3100 board System Status register is a read-only register used to provide board
status information.
Table 6-4
REG
BIT
FIELD
OPER
RESET
BD_TYPE
Board type. These bits indicate the board type.
00: VME SBC
01: PrPMC
10-11: Reserved
ABORT
This bit reflects the current state of the on-board abort signal. This is a debounced version
of the abort switch and may be used to determine the state of the abort switch. A cleared
condition indicates the abort switch is not depressed, while a set condition indicates the
abort switch is asserted.
SAFE_START
ENV safe start. This bit reflects the current state of the ENV safe start select switch. A set
condition indicates that firmware should use the safe ENV settings. A cleared condition
indicates that the ENV settings programmed in NVRAM should be used by the firmware.
RSVD
Reserved for future implementation.
MVME3100 Single Board Computer Installation and Use (6806800M28H)
System Status Register
System Status Register – 0xE2000000
7 6 5
R
0 0 0
System Status Register
4 3 2
X 0 0
1 0
0 0
105