W83793G Datasheet, PDF (37/131 Pages) Winbond – Winbond H/W Monitor

W83793G
8.6 OVT/BEEP Control Register
Another solution to deal with abnormal situation is through OVT(Over Temperature) or Beep.
OVT, as it naming, represents for temperature abnormal is happening. In some applications, it can be
combined with Fan control and used to throttle the Fan Speed.
Beep can directly use sound of two tones to inform user system abnormal. Unlike OVT, Beep can
associate with any channel.
8.6.1 OVT/BEEP Control Registers Map
MNEMONIC
OVT_Ctrl
OVT Control
REGISTER NAME
OVT_BeepEn
OVT/Beep Global Enable
TYPE
R/W
R/W
BEEP_Ctrl1
BEEP Control 1
R/W
BEEP_Ctrl5
BEEP Control 5
Pin 2 of W83793G is also a multi-function pin. It can be OVT# output signal or BEEP output signal and
be selected by programming Bank0 CR52 OVT/BEEP Control register.
8.6.2 OVT/BEEP Control Registers Details
8.6.2.1 OVT Control Register (OVT_Ctrl)
Location :
Type :
Bank 0 Address 51_HEX
Read / Write
Reset :
VSB5V(Pin 7) Rising.
OVT_CTRL
BIT
Name
7
6
5
4
3
2
1
0
OVT_MD EN_OVTR2 EN_OVTR1 EN_OVTD4 EN_OVTD3 EN_OVTD2 EN_OVTD1 OVTPOL
Reset
0
0
0
0
0
0
0
0
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Publication Release Date: Dec. 11, 2006
Revision 1.0