CL-PD6710/ PD6722
®
Preliminary Product Bulletin
FEATURES
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Single-chip PCMCIA host adapters
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Direct connection to ISA (PC AT) bus
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Direct connection to PCMCIA socket
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Compliant with PCMCIA 2.1 and JEIDA 4.1
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82365SL-compatible register set,
ExCA™-compatible
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Automatic Low-power Dynamic mode for lowest
power consumption
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Programmable Suspend mode
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Five programmable memory windows per socket
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Two programmable I/O windows per socket
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Programmable card access cycle timing
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8- or 16-bit CPU interface
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8- or 16-bit PCMCIA interface support
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ATA disk interface support
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DMA support (CL-PD6722)
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Easy host interface using ISA I/O addresses
03E0h and 03E1h
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Mixed-voltage (3.3V or 5V) operation
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Single-socket interface: 144-pin VQFP for small-
est form factor (CL-PD6710)
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Dual-socket interface: 208-pin PQFP and VQFP
(CL-PD6722)
PCMCIA Host Adapters
OVERVIEW
The CL-PD6710 and CL-PD6722 are single-chip
PCMCIA host adapter chips capable of controlling
one (CL-PD6710) or two (CL-PD6722) PCMCIA
sockets. The chips are fully PCMCIA-2.1 and JEIDA-
4.1 compliant and are optimized for use in notebook
and handheld computers where reduced form factor
and low power consumption are critical design objec-
tives. With the CL-PD6710, a complete PCMCIA
solution with power-control logic can occupy as little
as 1.5 square inches (excluding the connector). The
CL-PD6722 enables a complete dual-socket PCM-
CIA solution with power-control logic in less than 2
square inches (excluding connectors).
The CL-PD6710 and CL-PD6722 chips employ
energy-efficient mixed-voltage technology that can
reduce system power consumption by over 50 per-
cent. The chips also provide 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
(cont.)
turns off much of the internal circuitry.
System
Block Diagram
PCMCIA SOCKET 1
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PC
Ca
rd
CL-PD6710
144-Pin VQFP
ISA (AT)
BUS
or
CL-PD6722
208-Pin PQFP and VQFP
PCMCIA SOCKET 2
(CL-PD6722)
.
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PC
Ca
rd
May 1997
CIRRUS [ CIRRUS LOGIC ]
