w83627ef Winbond Electronics Corp America, w83627ef Datasheet - Page 44

• Manufacturer Part Number: w83627ef
• Description: Lpc Super I/o For Desktop & Server
• Manufacturer: Winbond Electronics Corp America

Table 6.4-2 Relative Register-at Smart Fan III control mode
Smart-Fan III Mode
6.6
CR[29h] bit 6.
6.6.1
SMI# interrupt for voltage is Two-Times Interrupt Mode. Voltage exceeding high limit or going below
low limit will causes an interrupt if the previous interrupt has been reset by reading all the interrupt
Status Register. (Figure 6.12 )
6.6.2
SMI# interrupt for fan is Two-Times Interrupt Mode. Fan count exceeding the limit, or exceeding and
then going below the limit, will causes an interrupt if the previous interrupt has been reset by reading
all the interrupt Status Register. (Figure 6.13 )
The HM_SMI#/OVT# pin is a multi-function pin. The function is selected at Configuration Register
CPUFANOUT0
CPUFANOUT1
CPUFANOUT0
CPUFANOUT1
SMART-FAN III
SMI# interrupt mode
MODE
Voltage SMI# mode
Fan SMI# mode
SMI#
Low limit
High limit
TEMPERATURE
Output Step Step Down Time Step Up Time
*Interrupt Reset when Interrupt Status Registers are read
CR[6Ah]
TARGET
CR[06h]
CR[63h]
CR[68h]
*
Figure 6.12
*
*
CR[07h] bit 4-7
CR[62h] bit 0-3
TOLERANCE
W83627EHF/EF, W83627EHG/EG
CR[0Eh]
CR[0Eh]
*
- 38 -
STOP VALUE
(MIN. FAN
OUTPUT)
CR[09h]
CR[64h]
CR[0Fh]
CR[0Fh]
Fan Count limit
SMI#
Figure 6.13
Keep Min. Fan
Output value
CR[12h] bit 4
CR[12h] bit 6
MAX. FAN
OUTPUT
CR[67h]
CR[69h]
*
*
CR[0Dh]
CR[66h]
STOP
TIME