Artesyn ATCA-7480 Installation and Use (February 2015) - Manual (Page 156)

Maps and Registers
ATCA-7480 Installation and Use (6806800T17A) 156
3 BUTTON# Input Input signal per slot which indicates
that the user wishes to hot remove
or hot add a PCI Express
card/module. 1 IPMC:
r/w
LPC: r
4 PRSNT# Input Input signal that indicates if a hot
pluggable PCI Express card/module
is currently plugged into the slot. 1 IPMC:
r/w
LPC: r
5 PWRFLT# Input Input signal from the power
controller to indicate that a power
fault has occurred. 1 IPMC:
r/w
LPC: r
6 MRL#/
EMILS Input Manual retention latch status or
Electromechanical latch status
input indicates that the retention
latch is closed or open. Manual
retention latch is used on the
platform to mechanically hold the
card in place and can be
open/closed manually.
Electromechanical latch is used to
electro-mechanically hold the card
in place and is operated by
software. MRL# is used for card-
edge and EMLSTS# is used for SIOM
form-factors. 1 IPMC:
r/w
LPC: r
7 EMIL Output Electromechanical retention latch
control output that opens or closes
the retention latch on the board for
this slot. A retention latch is used on
the platform to mechanically hold
the card in place. Refer to PCI
Express Server/Workstation
Module Electromechanical Spec
Rev 1.0 for details of the timing
requirements of this pin output. Ext. r
Table 5-74 Hot-Plug Virtual Pin Port Register (continued)
Address Offset:
CPU0: Port 1: 0x30,Port 2: 0x31, Port 3: 0x32, Port 4: 0x33
CPU1: Port 1: 0x38,Port 2: 0x39, Port 3: 0x3A, Port 4: 0x3B
Bit Signal Name Direction Description Default Access