9

FN6719.0

July 3, 2008

Control Registers

2

RESERVED

Reserved for future expansion.

1

RESERVED

Reserved for future expansion.

0

RESERVED

Reserved for future expansion.

TABLE 2. CONFIG/OP STATUS REGISTER (ADDR: 00H) (Continued)

BIT

FUNCTION

DESCRIPTION

TABLE 3. OPERATING STATUS REGISTER (ADDR: 01H)

BIT

FUNCTION

DESCRIPTION

7

RESERVED

Reserved for future expansion.

6

RESERVED

Reserved for future expansion.

5XOT

Ext Over-temp

This bit is set to “1” when the external thermistor indicates an over-temperature condition. If the temperature

condition has cleared, this bit is reset when the register is read.

4IOT

Int Over-temp

This bit is set to “1” when the internal thermistor indicates an over-temperature condition. If the temperature condition

has cleared, this bit is reset when the register is read.

3

RESERVED

Reserved for future expansion.

2

RESERVED

Reserved for future expansion.

1

RESERVED

Reserved for future expansion.

0

RESERVED

Reserved for future expansion.

TABLE 4. ANALOG OUT CONTROL REGISTER (ADDR: 03H)

BITS

FUNCTION

DESCRIPTION

7UFLG1

User Flag 1

General purpose flag usable by microcontroller software. This bit is battery backed up, even

when RGO turns off.

6UFLG0

User Flag 0

General purpose flag usable by microcontroller software. This bit is battery backed up, even

when RGO turns off.

5:4

RESERVED

Reserved for future expansion

BIT 3

AO3

BIT 2

AO2

BIT 1

AO1

BIT 0

AO0

OUTPUT VOLTAGE

0

0

0

0

No Output (low power state)

000

1

001

0

001

1

010

0

010

1

011

0

011

1

1

0

0

0

External Temperature

1

0

0

1

Internal Temperature

1

x

1

x

RESERVED

1

1

x

x

RESERVED

ISL94201