CL-PD6729
®
Preliminary Data Sheet
FEATURES
s
Single-chip PCMCIA (PC Card) host adapter
s
Direct connection to PCI bus
s
Direct connection of two PCMCIA sockets
s
ZV Port
™
support for multimedia applications
s
Compliant with PCI 2.1
s
Compliant with PCMCIA 2.1 and JEIDA 4.1
s
82365SL-compatible register set,
ExCA
™
-compatible
s
Automatic Low-power Dynamic mode for lowest
power consumption
s
Programmable Suspend mode
s
Five programmable memory windows per socket
s
Two programmable I/O windows per socket
s
Programmable card access cycle timing
s
8- or 16-bit PCMCIA card support
s
ATA disk interface support
s
Automatic flash memory timing support
s
3.3V, 5V, or mixed 3.3/5V operation
s
Supports PCMCIA low-voltage card specification
s
Multiple CL-PD6729s can be used on the PCI bus
without external hardware
s
208-pin PQFP
PCI-to-PCMCIA Host Adapter
OVERVIEW
The CL-PD6729 is a single-chip PCMCIA (also
known as PC Card) host adapter solution capable of
controlling two fully independent PCMCIA sockets.
The chip is fully PCMCIA-2.1 and JEIDA-4.1 compli-
ant and is optimized for use in notebook and hand-
held computers where reduced form factor and low
power consumption are critical design objectives.
With the CL-PD6729, a complete dual-socket PCM-
CIA solution with power-control logic can occupy less
than 2 square inches (excluding connectors).
The CL-PD6729 chip employs energy-efficient,
mixed-voltage technology that can reduce system
power consumption by over 50 percent. The chip also
provides a Suspend mode, which stops the internal
clock, and an automatic Low-power Dynamic mode,
which stops transactions on the PCMCIA bus, stops
internal clock distribution, and turns off much of the
(cont.)
internal circuitry.
System
Block Diagram
PC
PCMCIA SOCKET 1
.
......
......
......
......
......
......
......
......
......
......
.......
Ca
rd
PCI
BUS
CL-PD6729
208-Pin PQFP
PCMCIA SOCKET 2
.
......
......
......
......
......
......
......
......
......
......
.......
PC
Ca
rd
Version 2.0
.
January 1997
CIRRUS [ CIRRUS LOGIC ]
