Presence Detect Register - SMART Embedded Computing MVME7100ET Programmer's Reference Manual

3.1.7

Presence Detect Register

The MVME7100ET provides a Presence Detect Register that may be read by the system
software to determine the presence of optional devices.
Table 3-8
REG Presence Detect Register - 0xF200 0006
BIT 7
Field RSVD
OPER R
RESE
0
T
PMC1P
PMC2P
XEP
ERDY1
ERDY2
RSVD
MVME7100ET Single Board Computer Programmer's Reference (6806800K88C)
Presence Detect Register
6 5
RSVD ERDY2
0 0
PMC Module 1 Present. If cleared, there is no PMC module installed in
site 1. If set, the PMC module is installed.
PMC Module 2 Present. If cleared, there is no PMC module installed in
site 2. If set, the PMC module is installed.
XMCspan Present. If cleared, there is no XMCspan module installed. If
set, the XMCspan module is installed.
EREADY1. Indicates that the PrPMC module installed in PMC site 1 is
ready for enumeration when set. If cleared, the PrPMC module is not
ready for enumeration. If no PrPMC is installed, this bit is always set.
EREADY2. Indicates that the PrPMC module installed in PMC site 2 is
ready for enumeration when set. If cleared, the PrPMC module is not
ready for enumeration. If no PrPMC is installed, the bit is always set.
Reserved for future implementation.
4 3 2
ERDY1 RSVD PEP
0 0 X
Register Descriptions
1 0
PMC2P PMC1P
X X
35