Rainbow-electronics MAX6616 Manual de usuario descargar pdf (Pagina 13)

MAX6615/MAX6616

Dual-Channel Temperature Monitors and

Fan-Speed Controllers with Thermistor Inputs

______________________________________________________________________________________ 13

Table 3. Register Map (continued)

R/W ADD

POR

STATE

FUNCTION D7 D6 D5 D4 D3 D2 D1 D0

R 0Dh

0000

000x

PWM1

instantan-

eous duty

cycle

MSB

(128/240)

——— — —

LSB

(2/240)

—

R 0Eh

0000

000x

PWM2

instantan-

eous duty

cycle

MSB

(128/240)

——— — —

LSB

(2/240)

—

R/W 0Fh

0000

Channel 1

fan-start

temperature

MSB — — — — — — LSB

R/W 10h

0000

Channel 2

fan-start

temperature

MSB — — — — — — LSB

R/W 11h

0000

000x

Fan

configuration

Hysteresis:

0 = 5°C, 1

= 10°C

Temp

step : 0 =

1°C,

12°C

Fan 1:

control 1

= Ch 1

Fan 1:

control 1

= Ch 2

Fan 2:

control 1

= Ch 1

Fan 2:

control 1

= Ch 2

——

R/W 12h

1011

01xx

Duty-cycle

rate of

change

Fan 1 MSB —

Fan 1

LSB

Fan 2

MSB

—

Fan 2

LSB

——

R/W 13h

0101

Duty-cycle

step size

Fan 1 MSB — —

Fan 1

LSB

Fan 2

MSB

——

Fan 2

LSB

R/W 14h

010x

xxxx

PWM

frequency

select

Select A Select B Select C — — — — —

R/W 15h

xx00

000*

GPIO

function

——

GPIO5:

0 =

output; 1

= input

GPIO4:

0 =

output; 1

= input

GPIO3:

0 =

output; 1

= input

GPIO2:

0 =

output; 1

= input

GPIO1:

0 =

output; 1

= input

GPIO0:

0 =

output; 1

= input

R/W 16h

xx11

111*

( N ote 1)

GPIO value — — GPIO5 GPIO4 GPIO3 GPIO2 GPIO1 GPIO0

R/W 17h

0000

Thermistor

offset

Th1 MSB

(sign)

——

Th1 LSB

(2°C)

Th2 MSB

(sign)

——

Th2 LSB

(2°C)

R 18h

1111

Tach1 value

— ———————

R 19h

1111

Tach2 value

— ———————

R/W 1Ah

1111

Tach1 limit

— ———————

R/W 1Bh

1111

Tach2 limit

— ———————

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20

MAX6615/MAX6616 1

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Rainbow-electronics MAX6616 Manual de usuario Pagina 13

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