W83791G Datasheet, PDF (54/99 Pages) Winbond – Winbond H/W Monitoring IC

W83791D/G
Diode Selection Register ⎯ Index 59h (Bank 0) , continued.
BIT
NAME
4
SELPIIV1
ATTRIBUTE
R/W
DESCRIPTION
Temperature sensor diode 1. When set to 1, select
Pentium II compatible Diode. Set to 0 to select 2N3904
Bipolar mode
3-0 Reserved
Reserved
7.45 Reserved ⎯ Index 5Ah - (Bank 0)
7.46 FANIN 4/5 Control ⎯ Index 5Bh (Bank 0)
Power on default: 00h; Reset by MR.
BIT
NAME
7
FANINC5
ATTRIBUTE
R/W
DESCRIPTION
FAN5 Input Control. Set to 1, pin 47 acts as FAN clock
input. Set to 0, this pin 47 acts as FAN control signal,
which is default value. This output pin can connect to
power PMOS gate to control FAN ON/OFF.
6
FANINC4
R/W
FAN4 Input Control. Set to 1, pin 46 acts as FAN clock
input. Set to 0, this pin 46 acts as FAN control signal,
which is default value. This output pin can connect to
power PMOS gate to control FAN ON/OFF.
5:0 Reserved
Reserved
7.47 FAN 4/5 Divisor Control ⎯ Index 5Ch (Bank 0)
Power on default: 00h
BIT
NAME
ATTRIBUTE
DESCRIPTION
7
FAN5_OB
R/W
Enable Fan 5 as Output Buffer. Set to 1, FANPWM5 can
drive logical high or logical low.
6:4 FAN_DIV5
R/W
FAN5 Speed Divisor.
<6:4> = 000 - divide by 1(Default);
<6:4> = 001 - divide by 2;
<6:4> = 010 - divide by 4;
<6:4> = 011 - divide by 8.
<6:4> = 100 - divide by 16.
<6:4> = 101 - divide by 32.
<6:4> = 110 - divide by 64
<6:4> = 111 - divide by 128.
3
FAN4_OB
R/W
Enable Fan 4 as Output Buffer. Set to 1, FANPWM4 can
drive logical high or logical low.
- 48 -
Publication Release Date: April 14, 2006
Revision 1.1