Rainbow-electronics MAX6640 Manual de usuario descargar pdf (Pagina 11)

MAX6640

2-Channel Temperature Monitor with Dual

Automatic PWM Fan-Speed Controller

______________________________________________________________________________________ 11

READ/

WRITE

NO.

ADDRESS

POR

STATE

FUNCTION

D7 D6 D5 D4 D3 D2 D1 D 0

R 00h

0000

Temperature

channel 1

MSB

(+128°C)

——————

LS B

( 1° C )

R 01h

0000

Temperature

channel 2

MSB

(+128°C)

——————

LS B

( 1° C )

R 02h

0000

Status byte

Channel 1

ALERT

Channel 2

ALERT

Channel 1

Channel 2

Channel 1

THERM

Channel 2

THERM

Fan 1 fault

Fan 2

faul t

R/W

03h

0000

0011

Output mask

Channel 1

ALERT

Channel 2

ALERT

Channel 1

Channel 2

Channel 1

THERM

Channel 2

THERM

Fan 1 fault

Fan 2

faul t

R/W

04h

0011

0000

Global

configuration

Run

0 = run,

1= stby

POR

1 = reset

SMBus

timeout

0 =

enabled,

1 =

disabled

Tem p

channel 2

sour ce:

1 = l ocal ,

0 = r em ote

Reserved Reserved Reserved Reser ved

R 05h

0000

Channel 1

extended

temperature

MSB

(0.5°C)

—

LSB

(0.125°C)

Reserved Reserved Reserved Reserved

D i od e

faul t

R 06h

0000

Channel 2

extended

temperature

MSB

(0.5°C)

—

LSB

(0.125°C)

Reserved Reserved Reserved Reserved

D i od e

faul t

R/W

08h

0101

Channel 1

ALERT limit

MSB ——————

LS B

( 1° C )

R/W

09h

0101

Channel 2

ALERT limit

MSB ——————

LS B

( 1° C )

R/W

0Ah

0110

1110

Channel 1 OT

limit

MSB ——————

LS B

( 1° C )

R/W

0Bh

0110

1110

Channel 2 OT

limit

MSB ——————

LS B

( 1° C )

R/W

0Ch

0101

Channel 1

THERM limit

MSB ——————

LS B

( 1° C )

R/W

0Dh

0101

Channel 2

THERM limit

MSB ——————

LS B

( 1° C )

R/W

10h

1000

0010

Fan 1

configuration

PWM

mode

Step-size

delay

(MSB)

Step-size

delay

Step-size

delay

(LSB)

Fan 1

channel 1

control

Fan 1

channel 2

control

RPM

range

select

RP M

r ang e

sel ect

R/W

11h

0000

Fan 1

Configuration

RPM step-

size A

(MSB)

RPM step-

size A

RPM step-

size A

RPM step-

size A

(LSB)

Temp

step-size

A (MSB)

Temp

step-size

A (LSB)

PWM

100% duty

cycle

M i ni m um

fan

sp eed

0 = 0%,

1= val ue

Table 3. Register Map

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 21 22

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Rainbow-electronics MAX6640 Manual de usuario Pagina 11

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