OZ6812 Ver la hoja de datos (PDF) - O2Micro International

Número de pieza

componentes Descripción

Lista de partido

OZ6812

ACPI CardBus Controller

O2Micro International 

OZ6812

Pin Name

PAR

PCI_CLK

RST#

GNT#

REQ#

Description

Parity: This pin generates PCI parity and ensures

even parity across AD[31:0] and C/BE[3:0]#.

During the address phase, PAR is valid after one

clock. With data phases, PAR is stable one clock

after a write or read transaction.

PCI Clock: This input provides timing for all

transactions on the PCI bus to and from the

OZ6812. All PCI bus signals, except RST#, are

sampled and driven on the rising edge of

PCI_CLK. This input can be operated at

frequencies from 0 to 33 MHz.

Device Reset: This input is used to initialize all

registers and internal logic to their reset states

and place most OZ6812 pins in a HIGH-

impedance state.

Grant: This signal indicates that access to the bus

has been granted.

Request: This signal indicates to the arbiter that

the OZ6812 requests use of the bus.

Pin Number

LQFP

BGA

36

L3

21

G4

20

G2

2

B2

1

A1

Input Type

TTL I/O

Power

Rail

PCI_Vcc

Drive

PCI

Spec

-

I

PCI_Vcc

-

-

I

AUX_Vcc

-

TTL

I

- TO

PCI_Vcc

PCI_Vcc

PCI

Spec

PCI

Spec

Power Control and General Interface Pins

Pin Name

RI_OUT/

PME#

Description

Ring Indicate Out: This pin is Ring Indicate

when the following occurs while O2 Mode Control

B Register (index 2Eh) bit 7 is set to 1:

1) Power Control (Index+02h) bit 7 set to 1

2) Interrupt and General Control (Index+03h)

bit 7 set to 1

3) PCI O2Micro Control 2 (Offset: D4h) bit X =

0

Pin Number

LQFP

BGA

59

M8

Input Type

-

TO

Power

Rail

Aux_Vcc

Drive

4mA

Power Management Event: A power

management event is the process by which the

OZ6812 can request a change of its power

consumption state. Usually, a PME occurs

during a request to change from a power saving

state to the fully operational state.

SPKR_OUT# Speaker Output: This output can be used to

62

K8

TTL I/O Aux_Vcc 12mA

support PC Card audio output. See O2 Mode E

Register (Index + 3Eh), bit 1.

MF[6:0]

Multifunction Terminal [6:0]: See PCI 69-67, 65-64, L10, K9, N11, TTL I/O Aux_Vcc 12mA

Multifunction MUX Register (Offset:08h).

61-60

L9, N10-9, L8

SUSPEND# Suspend: This signal is used to protect the

70

internal registers from clearing when the PCI

N12

TTL

I

Aux_Vcc

-

RST# signal is asserted. When low, this signal is

used to mask the PCI RESET during suspend.

This pin can be used during suspend to prevent

controller reset.

OZ6812-SF-1.5

Page 5

Share Link: