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Número de pieza | W83775G | |
Descripción | H/W Monitoring IC | |
Fabricantes | nuvoton | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de W83775G (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! W83775G
Nuvoton
H/W Monitoring IC
DATE: 25TH , JANUARY, 2010
REVISION: 1.4
1 page W83775G
2. FEATURES
2.1 Monitoring Items - Temperature
Measure the temperature with high accuracy
One on-chip thermal sensor
Two remote temperature sensor inputs
Ideality Factor Configuration on External Diodes.
Remote Diode Fault Detection.
2.2 General
Interface: SMBusTM serial interface
3.3V±10% VCC operation
10 bit plus sign remote temperature data format, 0.125C resolution
Programmable offset register for various thermal diodes
SMBusTM 2.0 compatible interface, supports TIMEOUT
Programmable conversion rates allow user to optimize the power consumption.
Supply 2 alert output on first remote channel: ALERT and T _ CRIT _ A
ALERT Output supports SMBusTM 2.0 protocol
Programmable Temperature High/Low limit and hysteresis for ALERT and T _ CRIT _ A output
Report both temperatures of diodes with Dual-core CPU.
2.3 Applications
Desktop and Notebook computers, support down to 45nm processes and below. (Please refer to
application notice for details)
Hardware Management
Servers
Embedded Applications
Publication Release Date: Jan, 2010
- 2 - Revision 1.4
5 Page W83775G
7.3 ALERT Output Mode
The W83775G ALERT pin is an active-low, open-drain output pin which is triggered when the
measured temperature exceeds the limits defined in limit registers. There are three types of ALERT
output mode: ALERT output comparator mode, ALERT output interrupt mode, and ALERT output
SMBus ALERT mode.
7.3.1 ALERT Output Comparator Mode
Fig. 7.3.1 shows the mechanism of ALERT output comparator mode. Setting Filter and Alert
Configure Register, or register address BFh, D0 to 1 enables ALERT output comparator mode. In this
mode, the ALERT pin will be alerted if the monitored temperature is out-of -limit and the ALERT pin
keeps low until the temperature goes back to the target range. This mode is not power-on default
setting.
High Limit
Measured Tmperature By
W83775G
W83775G ALERT Pin
W83775G High Limit
Status
Fig. 7.3.1 Response of ALERT output comparator mode
7.3.2 ALERT Output Interrupt Mode
Fig. 7.3.2 shows the mechanism of ALERT output interrupt mode. In this mode, the W83775G will set
the ALERT mask bit D7 of Configuration Register during a read of the Status Register if any flag in
Publication Release Date: Jan, 2010
- 8 - Revision 1.4
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet W83775G.PDF ] |
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