- PCMCIA card removal
- Posted by Peter Olcott on December 8th, 2007
Can PCMCIA cards be inserted and removed with the power on?
- Posted by Gerard Bok on December 8th, 2007
On Sat, 8 Dec 2007 13:00:09 -0600, "Peter Olcott"
<NoSpam@SeeScreen.com> wrote:
Technically: yes.
But often the OS requires 'prior warning' to safely remove
hardware :-)
So: hotplug is supported, hot remove is sometimes allowed.
--
Kind regards,
Gerard Bok
- Posted by Paul on December 8th, 2007
Peter Olcott wrote:
http://www.pcmcia.org/pccard.htm
"Sockets
CardBus sockets must be able to accept and support all 16-bit
PC Card within the constraints imposed by the host system (e.g.,
5 volt only PC Card cannot be supported in any system which supplies
only 3.3 volts. This is true for both CardBus and non-CardBus
interfaces).
The CardBus interface supports insertion and removal of cards
while a system is powered-ON (i.e., Dynamic Reconfiguration). The
socket must be powered-OFF when a card is not present. To the user,
this appears as though the socket is "hot" during insertion and
removal events."
I don't have a spec, but that suggests that perhaps when a PCMCIA
is plugged in, the power is not applied right away.
Paul
