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PDF W83795ADG Data sheet ( Hoja de datos )
| Número de pieza | W83795ADG | |
| Descripción | H/W Monitor | |
| Fabricantes | nuvoton | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de W83795ADG (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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W83795G/ADG
Nuvoton H/W Monitor
Date: Mar/3/2010 Revision: 1.43
1 page  
W83795G/ADG
2. GENERAL DESCRIPTION (W83795ADG)
W83795ADG is an evolving version of the Nuvoton popular Hardware Monitor IC family.
W83795ADG provides several innovative features, such as ASF 2.0 compliant specification, SMBus 2.0
ARP compatible command, Intel PECI2.0 interface, and PROCESSOR HOT. Conventionally,
W83795ADG can be used to monitor several critical hardware parameters of the system, including
power supply voltages, fan speeds, and temperatures, which are very important for a high-end computer
system, such as server, workstation…etc, to work stably and efficiently.
A 10-bit analog-to-digital converter (ADC) is built inside W83795ADG. W83795ADG can
simultaneously monitor 12 (up to 18) analog voltage inputs (including power VDD / 3VSB / VBAT / VTT
monitoring), 8 (up to 14) fan tachometer inputs, 2 fan output control, 6 remote temperature sensor inputs,
4 of which support current mode (dual current source) temperature measurement method, caseopen
detection, Watch Dog Timer function, and GPIO pins. The sense of remote temperature can be
performed by thermistors, or directly from Intel® CPU with thermal diode output. W83795ADG provides
2 PWM (pulse width modulation) / DC fan output modes for SMART FANTM control - Thermal CruiseTM
mode and SMART FANTM IV mode. Under Thermal CruiseTM mode, temperatures of CPU and
the system can be maintained within specific programmable ranges under the hardware control. As for
SMART FANTM IV, which provides 8 sets of temperatures setting point each could control fan‟s duty cycle,
depends on this construction, fan could be operated at the lowest possible speed so that the acoustic
noise could be balanced. As for warning mechanism, W83795ADG provides SMI#, OVT#, and BEEP
signals to protect the system. W83795ADG has 2 specific pins to provide address selection so that 4
W83795ADG could be wired through I2C interface at the same time.
W83795ADG can uniquely serve as an ASF sensor to respond to ASF master‟s request for the
implementation of network management in OS-absent status. Through W83795ADG‟s compliance with
ASF2.0 sensor specification, network server is able to monitor the environmental status of each client in
OS-absent state by PET (Platform Event Trap) frame values returned from W83795ADG, such as
temperatures, voltages, fan speed and case open. Moreover, W83795ADG supports SMBus 2.0 ARP
command to solve the problem of address conflicts by dynamically assigning a new unique address for
W83795ADG ASF Function after W83795ADG‟s UDID is sent.
Through the application software or BIOS, the users can read all the monitored parameters of the
system from time to time. A pop-up warning can also be activated when the monitored item is out of the
proper/preset range. The application software could be Nuvoton‟s Hardware DoctorTM or other
management application software. Besides, the users can set up the upper and lower limits (alarm
thresholds) of these monitored parameters and activate corresponding maskable interrupts.
-5–
Mar/3/2011
Revision 1.43
5 Page 
6. PIN CONFIGURATION
W83795G
W83795G/ADG
FANCTL5
FANIN6
FANCTL6
FANIN7
PROCHOT1#/FANCTL7
FANIN8
PROCHOT2#/FANCTL8
GND
FANIN9/PVID0/GPIO1
FANIN10/PVID1/GPIO2
FANIN11/PECI_REQ#/PVID2/GPIO3
FANIN12/PVID3/GPIO4
VOLT_FAULT#/PVID4/GPIO5
FAN_FAULT#PVID5/GPIO6
OVT2#/SCL_SVI/PVID6/GPIO7
OVT3#/SDA_SVI/PVID7/GPIO8
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
32 CLKIN
31 SYSRSTIN#/FANIN13/PROCHOT3#
30 SDA_TSI/THERMTRIP#
29 PECI/SCL_TSI
28 VTT
27 CASEOPEN#
26 VBAT
WW8833779954GG
25
24
3VSB
3VDD
23 VSEN11
22 VSEN10
21 VSEN9
20 VSEN8
19 VSEN7
18 VSEN6
17 VSEN5
- 11 –
Mar/3/2011
Revision 1.43
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet W83795ADG.PDF ] | |
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