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CardBus [1] is the mobile equivalent of PCI [2]. It is the 32 bit
replacement for the 8/16 bit PCMCIA [3]. Its advnatages include bus
mastering capability, meaning it lessens the CPU/system load when
undertaking intensive I/O. It also allows more data to be transferred.
The 22Mbit TI-based cards are cardbus-based, as are all 54Mbit 802.11a
products.
For more details about CardBus [4] see
http://www.pcmcia.org/papers/new_bus.htm [5]
Because the formfactor is identical, CardBus [6] cards are often
refered to as "PCMCIA [7] cards". A standard PCMCIA [8] card will work
in a CardBus [9] slot, but a CardBus [10] device won't work in a
regular PCMCIA [11] slot unless it is also backward compatible to
standard PCMCIA [12].
The CardBus [13] standard was released in 1996, so even quite old
laptops have CardBus [14] controllers. Some Toshiba laptops allow you
to switch between PCMCIA [15] and CardBus [16] support in the BIOS.
Links:
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[1] http://melbournewireless.org.au/?CardBus
[2] http://melbournewireless.org.au/?PCI
[3] http://melbournewireless.org.au/?PCMCIA
[4] http://melbournewireless.org.au/?CardBus
[5] http://www.pcmcia.org/papers/new_bus.htm
[6] http://melbournewireless.org.au/?CardBus
[7] http://melbournewireless.org.au/?PCMCIA
[8] http://melbournewireless.org.au/?PCMCIA
[9] http://melbournewireless.org.au/?CardBus
[10] http://melbournewireless.org.au/?CardBus
[11] http://melbournewireless.org.au/?PCMCIA
[12] http://melbournewireless.org.au/?PCMCIA
[13] http://melbournewireless.org.au/?CardBus
[14] http://melbournewireless.org.au/?CardBus
[15] http://melbournewireless.org.au/?PCMCIA
[16] http://melbournewireless.org.au/?CardBus
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