F71869A
S3
S0
S5
S5#
S3#
10us
10us
PSON#
VDD3V
VDDOK
400ms
VDDOK_D400
ATXPG
PWROK
S0P5_Gate#
S3_Gate#
S3P5_Gate#
could be programmed low
Figure 17 Timing chart of S3->S0->S5
5.6 AMD TSI and Intel PECI 3.0 Functions
The F71869A provides Intel PECI/AMD TSI interfaces for new generational CPU temperature
sensing. In AMDSI interface, there are SIC and SID signals for temperature information reading
from AMD CPU. The SIC signal is for clocking use, the other is for data transferring. More detail,
please refer register description.
VDDIO
300
300
SIC
SID
SCL
SDA
AMD
CPU
F71869A
Figure 18 AMD TSI typical application
In Intel PECI interface, the F71869A can connect to CPU directly. The F71869A can read the
temperature data from CPU, than the fan control machine of F71869A can implement the Fan to
cool down CPU temperature. The application circuit is as below.
41
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
