OZ992 Ver la hoja de datos (PDF) - O2Micro International
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componentes Descripción
Lista de partido
OZ992 Datasheet PDF : 5 Pages
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PIN DIAGRAM
SMBCLK
1
SMBDATA
2
PWRGD
3
EOI#
4
GPIO[16]
5
GPIO[17]
6
GPIO[18]/TEST[0]
7
GPIO[19]/TEST[1]
8
GPIO[0]/SMIEVENT
9
GPIO[1]
10
GPIO[2]/SMBALERT#
11
GPIO[3]
12
GPIO[4]
13
GND
14
OZ992
28
VCC
27
32KHZ
26
RESETN
25
GPIO[15]
24
GPIO[14]
23
GPIO[13]
22
GPIO[12]
21
GPIO[11]
20
GPIO[10]
19
GPIO[9]
18
GPIO[8]
17
GPIO[7]
16
GPIO[6]
15
GPIO[5]
PIN DESCRIPTION
Name
SMBCLK
SMBDATA
PWRGD
EOI#
GPIO[17:16]
GPIO[19:18] /
TEST[1:0]
Pin No.
Type
Input
Drive
Definition
1
I
TTL
-
SMBus Clock Input
SMBus Clock Input for SMBus protocol communication.
2
I/O
TTL
12mA
SMBus Data Input/Output
SMBus Data Input/Output for SMBus protocol communication.
3
I
TTL
-
Host System Power Good
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.
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.
[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.
[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
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