EMC2103-2-AP 参数 Datasheet PDF下载

RPM-Based Fan Controller with HW Thermal Shutdown

Datasheet

6.40

Software Lock Register

Table 6.56 Software Lock

ADDR

EFh

R/W

R/W

REGISTER

Software

Lock

B7

-

B6

-

B5

-

B4

-

B3

-

B2

-

B1

-

B0

LOCK

DEFAULT

00h

The Software Lock Register controls the software locking of critical registers. This register is software

locked.

Bit 0 - LOCK - this bit acts on all registers that are designated SWL. When this bit is set, the locked

registers become read only and cannot be updated.

‘0’ (default) - all SWL registers can be updated normally.

‘1’ - all SWL registers cannot be updated and a hard-reset is required to unlock them.

6.41

Product Features Register

Table 6.57 Product Features Register

ADDR

FCh

R/W

R

REGISTER

Product

Features

B7

-

B6

-

B5

-

B4

-

B3

-

B2

B1

B0

DEFAULT

00h

SHDN_SEL[2:0]

The Product Features Register indicates which pin selected functionality is enabled.

Table 6.58 SHDN_SEL[2:0] Encoding

SHDN_SEL[2:0]

2

0

1

0

0

0

DIODE MODE

External Diode 1 Simple Mode - Beta

compensation disabled, REC disabled -

recommended for AMD CPU diodes

External Diode 1 Diode Mode - Beta

compensation disabled, REC enabled

External Diode 1 Transistor Mode - Beta

compensation enabled, REC enabled - -

recommended for Intel 45nm and 65mn CPU

diodes

Internal Diode Transistor Mode - Beta

compensation enabled, REC enabled

External Diode 2 Transistor Mode - Beta

compensation enabled, REC enabled

(EMC2103-2 only)

External Diode 1 Diode mode (EMC2103-1 only)

1

0

1

External Diode 1 Transistor Mode - Beta

compensation enabled, REC enabled

68

OTHER FEATURES

none

0

0

0

1

1

0

none

none

0

1

1

0

1

0

none

none

none

Revision 0.85 (01-29-08)

SMSC EMC2103

DATASHEET