LM99

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SNIS129D – JANUARY 2003 – REVISED MARCH 2013

Table 9. (RHSLB) (Read / Write Address 13h):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

0.5

0.25

0.125

0

0

0

0

0

For RHSLB: Remote HIGH Setpoint Low Byte temperature data. Power–on default is 0°C. 1 LSB = 0.125°C.

Two's complement format.

LOCAL and REMOTE LOW SETPOINT REGISTERS (LLS, RLSHB, and RLSLB)

Table 10. (Read Address 06h, 08h, / Write Address 0Ch, 0Eh):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

SIGN

64

32

16

8

4

2

1

For LLS and RLSHB: HIGH setpoint temperature data. Power-on default is LHIGH = RHIGH = 0°C. 1 LSB = 1°C.

Two's complement format.

Table 11. (Read / Write Address 14h):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

0.5

0.25

0.125

0

0

0

0

0

For RLSLB: Remote HIGH Setpoint Low Byte temperature data. Power-on default is 0°C. 1 LSB = 0.125°C.

Two's complement format.

REMOTE TEMPERATURE OFFSET REGISTERS (RTOHB and RTOLB)

Table 12. (Read / Write Address 11h):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

SIGN

64

32

16

8

4

2

1

For RTOHB: Remote Temperature Offset High Byte. Power-on default is LHIGH = RHIGH = 0°C. 1 LSB = 1°C.

Two's complement format.

Table 13. (Read / Write Address 12h):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

0.5

0.25

0.125

0

0

0

0

0

For RTOLB: Remote Temperature Offset High Byte. Power-on default is 0°C. 1 LSB = 0.125°C. Two's

complement format.

The offset value written to these registers will automatically be added to or subtracted from the remote

temperature measurement that will be reported in the Remote Temperature registers.

LOCAL and REMOTE T_CRIT REGISTERS (RCS and LCS)

Table 14. (Read / Write Address 20h, 19h):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

SIGN

64

32

16

8

4

2

1

D7–D0: T_CRIT setpoint temperature data. Local power-on default is T_CRIT = 85°C. Remote power-on default

is T_CRIT = 110°C (+126°C actual remote diode temperature). 1 LSB = 1°C, two's complement format.

T_CRIT HYSTERESIS REGISTER (TH)

Table 15. (Read and Write Address 21h):

BIT

D7

D6

D5

D4

D3

D2

D1

D0

Value

16

8

4

2

1

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