OZ6812
ACPI CardBus Controller
1998 PC Card Standard. This standard incorporates the
new 32-bit CardBus while retaining the 16-bit PC Card
specification as defined by PCMCIA release 2.1. CardBus
is intended to support “temporal” add-in functions on PC
Cards, such as Memory cards, Network interfaces,
FAX/Modems and other wireless communication cards, etc.
The high performance and capability of the CardBus
interface will enable the development of many new
functions and applications.
FEATURES
The OZ6812 is a PCMCIA R2/CardBus controller, providing
the most advanced design flexibility for PC Cards that
interface with advanced notebook designs.
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ACPI-PCI Bus Power Management Interface
Specification Rev 1.1 Compliant
Supports OnNow LAN wakeup, OnNow Ring Indicate,
PCI CLKRUN#, PME#, and CardBus CCLKRUN#
Compliant with PCI specification V2.2, 1998 PC Card
Standard 7.0
The OZ6812 CardBus controller is compliant with the latest
ACPI-PCI Bus Power Management Interface Specification.
It supports all four power states and the PME# function for
maximum power savings and ACPI compliance. The device
also provides a power-down mode to allow host software to
reduce power consumption further by stopping internal
clock distribution as well as the PC Card socket clock. In
addition, an advanced CMOS process is utilized to
minimize system power consumption.
Yenta™ PCI to PCMCIA CardBus Bridge register
compatible
ExCA (Exchangeable Card Architecture) compatible
registers mappable in memory and I/O space
IntelTM 82365SL PCIC Register Compatible
Supports PCMCIA_ATA Specification
Supports 5V/3.3V PC Cards and 3.3V CardBus cards
Supports single PC Card or CardBus slot with hot
insertion and removal
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The OZ6812 single PCMCIA socket supports 3.3V/5V 8/16-
bit PC Card R2 card or 32-bit CardBus R3 card. The R2
card support is compatible with the Intel 82365SL PCIC
controller, and the R3 card support is fully compliant with
the 1998 PC Card Standard CardBus specification. The
OZ6812 is a stand alone device, which means that it does
not require an additional buffer chip for the PC Card socket
interface. In addition, the OZ6812 supports dynamic PC
Card hot insertion and removal, with auto configuration
capabilities.
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Supports multiple FIFOs for PCI/CardBus data transfer
Supports Direct Memory Access for PC/PCI and
PCI/Way on PC Card socket
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Programmable interrupt protocol: PCI, PCI+ISA,
PCI/Way, or PC/PCI interrupt signaling modes
Win’98 IRQ and PC-98/99 compliant
Parallel or Serial interface for socket power control
devices including Micrel and TI
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Zoomed Video Support
Integrated PC 98/99 -Subsystem Vendor ID support,
with auto lock bit
The OZ6812 is fully compliant with the 33Mhz PCI Bus
specification, V2.2. It supports a master device with
internal CardBus direct data transfer.
The OZ6812
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LED Activity Pins
implements a FIFO data buffer architecture between the
PCI bus and CardBus socket interface to enhance data
transfers to CardBus devices. The bi-directional FIFO
buffer (composed of 16 double words) permits the OZ6812
to accept data from a target bus (PCI or CardBus interface)
while simultaneously transferring data. This architecture
not only speeds up data transfers but also prevents system
deadlocks.
ORDERING INFORMATION
OZ6812T - 144pin LQFP
OZ6812B - 144pin Mini-BGA
GENERAL DESCRIPTION
The OZ6812 is an ACPI and PC98/99 logo certified, high
performance, single slot PC Card controller with
a
synchronous 32-bit bus master/target PCI interface. This
PC Card to PCI bridge host controller is compliant with the
04/25/00
Copyright 2000 by O2Micro
OZ6812-SF-1.5
All Rights Reserved
Page 1
Patent Pending
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