CL-PD6710/’22
ISA–to–PC-Card Host Adapters
OVERVIEW
(cont.)
Personal computer applications typically access PC
Cards through a third-party socket/card-services
software interface. To assure full compatibility with
industry-standard socket/card-services software and
PC Card applications, the register set in the
CL-PD6710 and CL-PD6722 is a superset of the
Intel
®
82365SL register set.
The chips provide fully buffered PC Card interfaces,
meaning that no external logic is required for buffer-
ing signals to/from the interface, and power con-
sumption can be controlled by limiting signal
transitions on the PC Card bus.
Notebook Computer Design Priorities
s
Small Form Factor
Supporting Features
Ì
Single-chip solutions
Ì
No external buffers for host or socket
Ì
Efficient board layout
s
Minimum Power Consumption
Ì
Automatic Low-Power Dynamic mode
Ì
Hardware- and software-controlled Suspend modes
Ì
Mixed-voltage operation
s
High Performance
Ì
Write cache
Ì
Programmable timing supports more cards, faster
reads and writes
Ì
Automatic bus sizing for 8- or 16-bit
Ì
DMA available with the CL-PD6722
s
Compatibility
Ì
Compliant with PC Card Standard, PCMCIA 2.1, and
JEIDA 4.1
Ì
82365SL A-step register-compatible,
ExCA
™
-compatible
Host Adapter Form Factor
1 9/16"
1 3/8"
Card
Card
VCC
and
VPP
Switch-
ing
Cir-
cuitry
VCC
1 1/4"
CL-PD6722
208-Pin
PQFP or VQFP
and
VPP
Switch-
ing
Cir-
cuitry
1"
CL-PD6710
144-Pin VQFP
2
PRELIMINARY DATA SHEET v3.1
May 1997
CIRRUS [ CIRRUS LOGIC ]
