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參數(shù)資料
| 型號(hào)： | OZ998 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Intelligent Manager Smart Multi-DIMM Selector |
| 中文描述： | 智能管理智能多內(nèi)存選擇 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 50K |
| 代理商： | OZ998 |
OZ998
OZ998-SF-2.2
Page 3
PIN DESCRIPTION
Name
Pin
No.
1
Primary SMBus Clock Input for SMBus protocol communication.
2
I/O
3.3V/5V Ext-PU
Primary SMBus Data Input/Output for SMBus protocol communication.
3
I
TTL
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 the output pins, GPO[19:8], from OZ998 while
GPO[7:0] will maintain its original value. Upon PWRGD going Low, the Secondary SMBus will be
disconnected from the Primary SMBus.
4
I
TTL
-
This active low pin will reset the OZ998.
5
I/O
TTL
4mA
Type
Input
Drive
Definition
P_SMBCLK
P_SMBDATA
PWRGD
I
3.3V/5V Ext-PU
-
Primary SMBus Clock Input
12mA
Primary SMBus Data I/O
-
Host System Power Good
RESET#
GPIO[16]/
S_SMBCLK1
Reset
General Purpose I/O/
Secondary SMBus-1 Clock I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[16] is
defaulted as an input. It is programmable to function as GPI[16] input, GPO[16] output or secondary
SMBus-1 Clock Input/Output. Refer to GPIO[19:16] Config.1&2 Registers for more details and GPIO
Config. Tables (section 8) for input/output selections.
6
I/O
TTL
4mA
GPIO[17]/
S_SMBDATA1
General Purpose I/O/
Secondary SMBus-1 Data I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[17] is
defaulted as an input. It is programmable to function as GPI[17] input, GPO[17] output or secondary
SMBus-1 Data Input/Output. Refer to GPIO[19:16] Config.1&2 Registers for more details and GPIO Config.
Tables (section 8) for input/output selections.
7
I/O
TTL
4mA
GPIO[18]/
S_SMBCLK2
General Purpose I/O/
Secondary SMBus-2 Clock I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[18] is
defaulted as an input. It is programmable to function as GPI[18] input, GPO[18] output or secondary
SMBus-2 Clock Input/Output. Refer to GPIO[19:16] Config.1&2 Registers for more details and GPIO
Config. Tables (section 8) for input/output selections.
Note: OZ998A GPIO [19:18] need 47k
:
pull-up for
normal operation, OZ998B doesn’t.
8
I/O
TTL
4mA
GPIO[19]/
S_SMBDATA2
General Purpose I/O /
Secondary SMBus-2 Data I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[19] is
defaulted as an input. It is programmable to function as GPI[19] input, GPO[19] output or secondary
SMBus-2 Data Input/Output. Refer to GPIO[19:16] Config.1&2 Registers for more details and GPIO Config.
Tables (section 8) for input/output selections.
Note: OZ998A GPIO [19:18] need 47k
:
pull-up for normal
operation, OZ998B doesn’t.
9
I/O
TTL
12mA
GPIO[0]/
SMIEVENT/ID[0]
General Purpose I/O /
SMIEVENT
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[0] has
an SMIEVENT output as an alternate function. GPIO[0] is set as default. It is also programmable to
function as GPI[0] input, GPO[0] output, ALF[0] output, or ID[0] input. In addition, if this pin is configured as
output, TTL output, Open Drain or Open collector output can be selected. Refer to GPIO Config.1&2
Registers for more details and GPIO Config. Tables (section 8) for input/output selections.
10
I/O
TTL
12mA
GPIO[1]/ID[1]
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. In addition, if this pin is configured as output, TTL output, Open Drain or Open collector output can
be selected. Refer to GPIO Config.1&2 Registers for more details and GPIO Config. Tables (section 8) for
input/output selections.
11
I/O
TTL
12mA
GPIO[2]/
SMBALERT#/ID[2]
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 OZ998. Pin GPIO[2]/SMBALERT# is also programmable to function as GPI[2]
input, GPO[2] output, ALF[2] output, or ID[2] input. In addition, if this pin is configured as output, TTL
output, Open Drain or Open collector can be selected. Refer to GPIO Config.1&2 Registers for more
details and GPIO Config. Tables (section 8) for I/O selections.
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