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OZ992

型号：

OZ992

描述：

智能管理智能ACPI GPIO / SCI[ Intelligent Manager Smart ACPI GPIO/SCI ]

品牌：

ETC[ ETC ]

页数：

5 页

PDF大小：

40 K

下载PDF手册
OZ992  
Intelligent Manager  
Smart ACPI GPIO/SCI  
FEATURES  
GENERAL DESCRIPTION  
O2Micro’s OZ992 Smart ACPI/SCI (System Control  
Interrupt) General Purpose Input/Output unit allows  
OEMs to transform their legacy systems to ACPI  
compliant systems by supporting up to 16 extra SCI  
inputs. Regular core logic chipsets, such as the Intel  
430TX/BX and ACPI compliant embedded controllers  
have limited allowance for the GPIO or SCI input  
signals for the system. The OZ992 provides a bridge  
between the chipsets and the rest of the system to  
allow system designers a cost-effective way to  
improvise for such a deficiency.  
•
•
SMBus, version 1.0, Compliance  
Master mode function to interface with ACPI  
compliant embedded controller  
•
•
Support Pentium and x86-based designs  
Supported by default embedded controller  
firmware  
•
•
Accept up to 16 SCI inputs  
Programmable level or edge (falling and rising  
edge) triggered SCI inputs  
•
20 possible edge-sensitive programmable  
General Purpose Inputs/Outputs per device  
OZ992 provides up to 20 GPIO signals in regular  
SMB slave mode. In addition, the OZ992 allows up to  
16 System Control Interrupt (SCI) input transitions to  
be written to the system’s embedded controller in  
master mode. The OZ992 provides the perfect  
solution for leading notebook vendors to stay ahead  
of the competition.  
•
•
•
•
Programmable addresses for cascading OZ992s  
32KHz operating frequency  
Supports 3.3v or 5v supply  
LOW-power hardware-driven speaker alarm  
output  
•
•
•
Software programming kit available  
SMBALERT# and SMIEVENT outputs  
The OZ992 is an SMBus 1.0 compliant ACPI GPIO  
with 16 Programmable General Purpose I/Os pins  
8 programmable interrupt inputs for SMI event or  
SMBALERT#  
flexible for  
a
variety of functions such as  
programmable inputs/outputs, SMB/SMI interrupt  
service, power-saving, modularized hardware ID, and  
Auto LED Flash (ALF) status display. OZ992’s other  
features include hardware-driven speaker alarm  
output.  
•
8 Auto LED Flash(ALF) programmable outputs  
with 10% or 50% duty cycles  
ORDERING INFORMATION  
OZ992S - 28 pin SSOP  
As a Pentium and x86-based system compatible  
device, the OZ992 Smart ACPI GPIO is a highly cost-  
effective and practical solution for today’s notebook  
and palmtop computers, pen-based data systems,  
personal digital assistants, and portable data-  
collection terminals.  
7/13/00  
©Copyright 1998 by O2Micro  
OZ992-SF-1.7  
All Rights Reserved  
Page 1  
OZ992  
PIN DIAGRAM  
28  
VCC  
1
SMBCLK  
SMBDATA  
PWRGD  
32KHZ  
27  
26  
25  
2
3
4
RESETN  
EOI#  
GPIO[15]  
GPIO[14]  
GPIO[16]  
GPIO[17]  
24  
23  
5
GPIO[13]  
GPIO[12]  
6
7
8
GPIO[18]/TEST[0]  
22  
21  
GPIO[19]/TEST[1]  
GPIO[0]/SMIEVENT  
GPIO[1]  
GPIO[11]  
GPIO[10]  
20  
19  
18  
9
GPIO[9]  
GPIO[8]  
GPIO[7]  
GPIO[6]  
GPIO[5]  
10  
11  
GPIO[2]/SMBALERT#  
GPIO[3]  
17  
16  
12  
13  
14  
GPIO[4]  
GND  
15  
PIN DESCRIPTION  
Name  
Pin No.  
Type  
Input  
Drive  
Definition  
SMBCLK  
1
I
TTL  
-
SMBus Clock Input  
SMBus Data Input/Output  
Host System Power Good  
SMBus Clock Input for SMBus protocol communication.  
I/O TTL 12mA  
SMBus Data Input/Output for SMBus protocol communication.  
TTL  
SMBDATA  
PWRGD  
2
3
I
-
This pin indicates that the host system’s power, including the Core Logic chipsets, is stable. Before the host  
system’s power is stable, this input pin will tri-state all the output pins from OZ992.  
EOI#  
4
I
TTL  
-
End of Interrupt  
The embedded controller will signify the OZ992 when the activated SCI has been serviced. This pin is to be  
used with EC master mode only.  
GPIO[17:16]  
[6:5]  
I/O  
TTL  
4mA  
General Purpose I/Os  
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. Pins GPIO[17:16]  
default as inputs. They are programmable to function as either GPI[17:16] inputs or GPO[17:16] outputs. Refer  
to GPIO[19:16] Config.1&2 Registers for more details and GPIO Config. Tables (section 5.0) for input/output  
selections.  
GPIO[19:18] /  
TEST[1:0]  
[8:7]  
I/O  
TTL  
4mA  
General Purpose I/Os  
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. Pins  
GPIO[19:18]/TEST[1:0] default as inputs. They are programmable to function as either GPI[19:18] inputs or  
GPO[19:18] outputs. Refer to GPIO[19:16] Config.1&2 Registers for more details and GPIO Config. Tables  
(section 5.0) for input/output selections.  
During regular usage, pull-ups of 47KΩ should be connected to GPIO[19:18]/TEST[1:0] to ensure the regular  
OZ992 operation. Alternative uses for GPIO[19:18] are as TEST[1:0], which provide 2 proprietary OZ992 test  
modes.  
OZ992-SF-1.7  
Page 2  
OZ992  
Name  
GPIO[0]/  
SMIEVENT  
Pin No.  
Type  
I/O  
Input  
TTL  
Drive  
4mA  
Definition  
9
General Purpose I/O /  
SMIEVENT  
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. Pin GPIO[0] has  
SMIEVENT output as an alternate function. GPIO[0] defaults. It is also programmable to function as GPI[0]  
input, GPO[0]output, ALF[0] output, or ID[0] input. Refer to GPIO Config.1&2 Registers for more details and  
GPIO Config. Tables (section 5.0) for input/output selections.  
GPIO[1]  
10  
I/O  
TTL  
4mA  
General Purpose I/O  
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. GPIO[1] pin defaults  
as input. It is also programmable to function as GPI[1] input, GPO[1]output, ALF[1] output, or ID[1] input. Refer  
to GPIO Config.1&2 Registers for more details and GPIO Config. Tables (section 5.0) for input/output  
selections.  
GPIO[2]/  
SMBALERT#  
11  
I/O  
TTL  
4mA  
General Purpose I/O /  
SMBALERT#  
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[2] defaults  
as input. This pin, when programmed as an alternate function, can generate the SMBALERT# interrupt.  
SMBALERT# is an interrupt service request signal to the SMBus Host which can be generated by all devices  
connected to the OZ992. Pin GPIO[2]/SMBALERT# is also programmable to function as either GPI[2] input,  
GPO[2] output, ALF[2] output, or ID[2] input. Refer to GPIO Config.1&2 Registers for more details and GPIO  
Config. Tables (section 5.0) for I/O selections.  
GPIO[7:3]  
[17:15],  
[13:12]  
I/O  
TTL  
4mA  
General Purpose I/Os  
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. GPIO[7:3] pins  
default as inputs. They are programmable to function as GPI[7:3] inputs, GPO[7:3] outputs, ALF[7:3] outputs,  
or ID[7:3] inputs. Refer to GPIO Config.1&2 Registers for more details and GPIO Config. Tables (section 5.0)  
for input/output selections.  
GPIO[15:8]  
RESETN  
[25:18]  
I/O  
TTL  
4mA  
General Purpose I/Os  
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. Pins GPIO[15:8]  
default as inputs. Pins GPIO[15:8] as inputs are programmable to generate SMI/SMB interrupts. They are also  
programmable to function as GPI[15:8] inputs, GPO[15:8] outputs. Refer to GPIO Config.1&2 Registers for  
more details and GPIO Config. Tables (section 5.0) for input/output selections.  
26  
I
TTL  
-
Reset  
OZ992 hardware reset. RESETN(active LOW) resets all registers to their default values. This pin is connected  
to the RC delay from the power supplied to OZ992.  
32KHz  
GND  
27  
I
TTL  
-
-
-
32KHz Clock Input  
32KHz Clock Input.  
14  
Ground.  
28  
GND  
PWR  
-
-
Ground  
VCC  
3.3V/5V Power Supply  
3.3V or 5V Power Supply.  
GPIO Pins Alternate Usage  
19  
16 15  
8 7  
0
GPIO[19:0]  
SMIEVENT/SMBALERT#  
SCI to Embedded Controller  
OZ992-SF-1.7  
Page 3  
OZ992  
DC CHARACTERISTICS  
DC TABLE FOR VCC = 5.0V r 10%  
Symbol  
VCC  
VIH  
Parameter  
Power Supply Voltage  
Input HIGH Voltage  
Input LOW Voltage  
Output HIGH Voltage  
Output LOW Voltage  
Min  
4.5  
3.5  
-
2.4  
-
Max  
5.5  
-
1.5  
-
0.4  
10  
10  
Units  
V
V
V
V
V
µA  
µA  
VIl  
VOH  
VOL  
IIL  
Maximum Input Leakage Current  
Maximum Output Leakage  
-10  
-10  
IOL  
DC TABLE FOR VCC = 3.3V r 10%  
Symbol  
VCC  
VIH  
Parameter  
Power Supply Voltage  
Input HIGH Voltage  
Min  
3.0  
2.3  
-
Max  
3.6  
-
Units  
V
V
VIl  
Input LOW Voltage  
1
V
VOH  
VOL  
IIL  
Output HIGH Voltage  
Output LOW Voltage  
Maximum Input Leakage Current  
Maximum Output Leakage  
2.4  
-
-10  
-10  
-
V
V
µA  
µA  
0.4  
10  
10  
IOL  
CAPACITANCE  
Symbol  
Parameter  
Units  
pF  
pF  
0 qC to 70qC  
CIN  
COUT  
CIO  
Maximum Input Capacitance  
Maximum Output Capacitance  
Maximum I/O Capacitance  
10  
10  
10  
pF  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
VCC  
VIN, VOUT  
IIN  
Parameter  
DC Power Supply Voltage  
DC Input, Output Voltage  
DC Current Drain VDD and VSS  
Pins  
Value  
3.0 to 3.6  
-0.3 to VDD + 0.3  
Units  
V
V
±10  
mA  
TSTG  
TOPER|  
°C  
°C  
Storage Temperature  
Operation Temperature  
-40 to +125  
0 to 70  
ICC SPECIFICATIONS  
Symbol  
Parameter  
Supply Current  
Typ  
50  
Max  
60  
Units  
µA  
ICC  
OZ992-SF-1.7  
Page 4  
OZ992  
OZ992 PACKAGE INFORMATION  
DIM  
INCHES  
MIN MAX  
0.084  
MILLIMETERS  
MIN  
MAX  
A
2.13  
SSOP  
PACKAGE  
(209 mil)  
A1 0.002 0.010  
0.05  
0.22  
0.09  
9.90  
5.00  
0.25  
0.38  
0.20  
10.50  
5.60  
B
C
D
E
e
0.009 0.015  
0.004 0.008  
0.390 0.413  
0.197 0.220  
0.0256  
E
H
0.65  
H
L
α
0.291 0.323  
0.025 0.041  
7.40  
0.63  
0°  
8.20  
1.03  
8°  
0°  
8°  
e
D
C
A
B
D
A1  
L
OZ992-SF-1.7  
Page 5  
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