W83L784R_05 Datasheet, PDF (38/52 Pages) Winbond – Monitoring IC

W83L784R/ W83L784G
7.32 FAN Configuration Register -- Index 84h
Power on default [7:0] = 0000, 0000 b
BIT
NAME
READ/WRITE
DESCRIPTION
7-2 Reserved
Read/Write
Reserved
5-4 FAN2_MODE Read/Write
FAN 2 PWM Control Mode.
00 - Manual PWM Control Mode. (Default)
01 - Thermal Cruise mode.
10 - Fan Speed Cruise Mode.
11 - Reserved.
3-2 FAN1_MODE Read/Write
FAN 1 PWM Control Mode.
00 - Manual PWM Control Mode. (Default)
01 - Thermal Cruise mode.
10 - Fan Speed Cruise Mode.
11 - Reserved.
1 FAN2_OB
Read/Write
Enable Fan 2 as Output Buffer. Set to 1, FANPWM1
can drive logical high or logical low. Default Pin 4
(FANPWM) is open-drain.
0 FAN1_OB
Read/Write
Enable Fan 1 as Output Buffer. Set to 1, FANPWM1
can drive logical high or logical low. Default Pin 3
(FANPWM) is open-drain.
7.33 CPUT1 Target Temperature Register/ Fan 1 Target Speed Register -- Index
85h
Power on default [7:0] = 0000, 0000 b
CPUT1 target temperature register for Thermal Cruise mode.
BIT
NAME
READ/WRITE
DESCRIPTION
7 Reserved
Read/Write Reserved.
6-0 TEMP_TAR_T1[6:0] Read/Write
CPUT1 Target Temperature. Only for Thermal
Cruise Mode while CR84h bit3-2 is 01.
Fan 1 target speed register for Fan Speed Cruise mode.
BIT
NAME
READ/WRITE
DESCRIPTION
7-0 SPD_TAR_FAN1 Read/Write
[7:0]
Fan 1 Target Speed Control. Only for Fan Speed
Cruise Mode while CR84h bit3-2 is 10.
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Publication Release Date: Jan. 2005
Revision 1.1