CL-PD6710/’22
®
Preliminary Data Sheet
FEATURES
s
Single-chip PC Card host adapters
s
Direct connection to ISA (PC AT) bus and one or two
PC Card sockets
s
Compliant with PC Card Standard, PCMCIA 2.1, and
JEIDA 4.1
s
82365SL-compatible register set,
ExCA
™
-compatible
s
Automatic Low-Power Dynamic mode for lowest
active power consumption
s
Programmable Suspend mode
s
Hardware-enabled Super Suspend mode
s
Five programmable memory windows per socket
and two programmable I/O windows per socket
s
Programmable card access cycle timing
s
8- or 16-bit system bus interface
s
8- and 16-bit PC Card interface support
s
ATA disk interface support
s
DMA support (CL-PD6722)
s
Card-voltage sense support
s
PC Card activity indicator
s
Mixed-voltage operation (3.3/5.0 V)
s
Single-socket interface: 144-pin VQFP for smallest
form factor (CL-PD6710)
s
Dual-socket interface: 208-pin PQFP or VQFP
(CL-PD6722)
ISA–to–PC-Card Host Adapters
OVERVIEW
The CL-PD6710 and CL-PD6722 are single-chip PC
Card host adapter solutions capable of controlling
one (CL-PD6710) or two (CL-PD6722) PC Card
sockets. The chips are compliant with PC Card Stan-
dard, PCMCIA 2.1, and JEIDA 4.1 and are optimized
for use in notebook and handheld computers where
reduced form factor and low power consumption are
critical design objectives. With the CL-PD6710, a
complete PC Card solution with power-control logic
can occupy less than 1.5 square inches (excluding
the socket connector). With the CL-PD6722, a com-
plete dual-socket PC Card solution with power-con-
trol logic can occupy less than 2 square inches
(excluding socket connectors).
The chips employ energy-efficient mixed-voltage
technology that can reduce system power consump-
tion by over 50 percent. The chips also provide: a
Low-Power Dynamic mode, which automatically
stops the internal clock during periods of card inac-
tivity; a software-controlled Suspend mode, which
dramatically reduces power by disabling most of the
internal circuitry and stopping data transactions to
the PC Cards; and a hardware-controlled Super Sus-
pend mode, which reduces current to the
µ
A range.
(cont.)
System
Block Diagram
PC
PC CARD SOCKET 1
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Ca
rd
CL-PD6710
ISA (AT)
BUS
144-Pin
CL-PD6722
208-Pin
PC CARD SOCKET 2
(CL-PD6722)
.
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PC
Ca
rd
Version 3.1
May 1997
CIRRUS [ CIRRUS LOGIC ]
