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2.0 LM86 REGISTERS (Continued)

2.4 CONFIGURATION REGISTER

(Read Address 03h /Write Address 09h):

D7 D6 D5 D4 D3 D2 D1 D0

ALERT mask RUN/STOP 0 Remote

T_CRIT_A

mask

0 Local

T_CRIT_A

mask

0 Fault Queue

Power up default is with all bits “0” (zero)

D7: ALERT mask: When set to “1” ALERT interrupts are masked.

D6: RUN/STOP: When set to “1” SHUTDOWN is enabled.

D5: is not defined and defaults to “0”.

D4: Remote T_CRIT mask: When set to “1” a diode temperature reading that exceeds T_CRIT setpoint will not activate the

T_CRIT_A pin.

D3: is not defined and defaults to “0”.

D2: Local T_CRIT mask: When set to “1” a Local temperature reading that exceeds T_CRIT setpoint will not activate the

T_CRIT_A pin.

D1: is not defined and defaults to “0”.

D0: Fault Queue: when set to “1” three consecutive remote temperature measurements outside the HIGH, LOW, or T_CRIT

setpoints will trigger an “Outside Limit” condition resulting in setting of status bits and associated output pins..

2.5 CONVERSION RATE REGISTER

(Read Address 04h /Write

Address 0Ah)

Value Conversion

Rate

00 62.5 mHz

01 125 mHz

02 250 mHz

03 500 mHz

04 1 Hz

05 2 Hz

(Read Address 04h /Write

Address 0Ah)

Value Conversion

Rate

06 4 Hz

07 8 Hz

08 16 Hz

09 32 Hz

10-255 Undefined

2.6 LOCAL and REMOTE HIGH SETPOINT REGISTERS (LHS, RHSHB, and RHSLB)

(Read Address 05h, 07h /Write Address 0Bh, 0Dh):

BIT D7 D6 D5 D4 D3 D2 D1 D0

Value SIGN 64 32 16 8 4 2 1

For LHS and RHSHB: HIGH setpoint temperature data. Power up default is LHIGH = RHIGH = 70˚C. 1LSB = 1˚C. Two’s

complement format.

(Read/Write Address 13h):

BIT D7 D6 D5 D4 D3 D2 D1 D0

Value 0.5 0.25 0.125 00000

For RHSLB: Remote HIGH Setpoint Low Byte temperature data. Power up default is 0˚C. 1LSB = 0.125˚C. Two’s complement

format.

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

(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 up default is LHIGH = RHIGH = 0˚C. 1LSB = 1˚C. Two’s

complement format.

(Read/Write Address 14h):

BIT D7 D6 D5 D4 D3 D2 D1 D0

Value 0.5 0.25 0.125 00000

LM86

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