Design and Implementation of Synthesizable VHDL Model for General PCMCIA I/O Cards Controller
Engineering and Technology Journal,
2008, Volume 26, Issue 7, Pages 762-776
The portable and nomadic computer market has driven the development of
PCMCIA Cards to address the expansion needs for the user. These cards provide a
vast variety of hardware devices which are rugged, credit-card sized, lightweight,
and power efficient. These cards are easy to use, especially for the non-technical
user. Since the sockets are accessible from the outside of the system, the system
does not have to be powered-off, opened, and rebooted to add or remove a device.
This dynamic insertion and removal feature inherently makes these devices power
manageable and also allows devices to easily be shared among different computers.
This paper is concerned with type II PC cards, which mean I/O cards,
therefore a design and implementation of synthesizable VHDL model for control
system (Controller) of the PCMCIA I/O cards is presented.
The implementation of the control system (controller) has been done by using very
high speed hardware descriptive language (VHDL) and its implementation on field
programming gate array (FPGA) type Xilinx Spartan 2 (XC2S30-6 Pq208) by
using synthesis and implement tools of ISE6.3 program.
The used of FPGA technology is optimal for this paper because it offers high
reliability and flexibility in modifying and even developing the required design
with a reduction in the required number of hardware components, also the non
recurring engineering cost.
The timing behavior of the controller is be tested and verified to ensure
that it meets the performance requirements by using simulation tools of Active-
HDL program AND Daley report of ISE program, therefore examples of
simulation results of read/write transfers for both an attribute memory and I/O
devices are presented in this paper.
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