EMC6D102-CZC View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
MFG CO.
EMC6D102-CZC
SMSC -> Microchip
'EMC6D102-CZC' PDF : 86 Pages View PDF
Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Chapter 9 Timing Diagrams
Datasheet
9.1
PWM Outputs
The following section shows the timing for the PWM[1:3] outputs.
FANx
t1
t2
Figure 9.1 PWMx Output Timing
NAME
t1
t2
Table 9.1 Timing for PWM[1:3] Outputs
DESCRIPTION
MIN
TYP
PWM Period (Note 9.1)
11.4
PWM High Time (Note 9.2)
0
MAX
90.9
99.6
UNITS
msec
%
Note 9.1 This value is programmable by the PWM frequency bits located in the FRFx registers.
Note 9.2
The PWM High Time is based on a percentage of the total PWM period (min=0/256*TPWM,
max =255/256*TPWM). During Spin-up the PWM High Time can reach a 100% or Full On.
(TPWM = t1).
9.2
SMBus Interface
SCLK
SDAT
t BUF
P
S
tLOW
tR
t HD:STA
tHIGH
tF
tHD:DAT tSU:DAT
tHD:STA
tSU:STA
S
Figure 9.2 SMBus Timing
tSU:STO
P
Revision 0.4 (04-05-05)
80
DATASHEET
SMSC EMC6D102
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