CL-PD6710 Datasheet, PDF (1/128 Pages) Cirrus Logic – ISA-TOOPC-CARD HOST ADAPTERS

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 µA ran_(cg_oe_nt._.)
System
Block Diagram
PC CARD SOCKET 1
ISA (AT)
BUS
CL-PD6710
144-Pin
CL-PD6722
208-Pin
PC CARD SOCKET 2
(CL-PD6722)
Version 3.1
May 1997