Ds1854, Auxiliary device, Main device – Rainbow Electronics DS1854 User Manual

Page 12

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DS1854

Register Map

A description of the registers is below. The registers
are read only (R) or read/write (R/W). The R/W registers
are writable only if write protect has not been asserted
(see the Memory Description section).

Dual Temperature-Controlled Resistors with
Two Monitors

12

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MEMORY LOCATION

EEPROM/SRAM

R/W

DEFAULT SETTING

NAME OF LOCATION

FUNCTION

00 to 7F

EEPROM

R/W

00

Standards Data

Auxiliary Device

MEMORY

LOCATION

EEPROM/

SRAM

R/W

DEFAULT

SETTING

NAME OF LOCATION

FUNCTION

00 to 01

EEPROM

R/W

00

TMPlimhi (MSB to LSB)

Contains upper limit settings for temperature.
If the limit is violated, a flag in Main Device
byte 70h is set.

02 to 03

EEPROM

R/W

00

TMPlimlo (MSB to LSB)

Contains lower limit settings for temperature.
If the limit is violated, a flag in Main Device
byte 70h is set.

04 to 07

EEPROM

R

00

Reserved

08 to 09

EEPROM

R/W

00

V

CC

limhi (MSB to LSB)

Contains upper limit settings for V

CC

. If the

limit is violated, a flag in Main Device byte
70h is set.

0A to 0B

EEPROM

R/W

00

V

CC

limlo (MSB to LSB)

Contains lower limit settings for V

CC

. If the

limit is violated, a flag in Main Device byte
70h is set.

0C to 0F

EEPROM

00

Reserved

10 to 11

EEPROM

R/W

00

MON1limhi (MSB to LSB)

Contains upper limit settings for MON1. If the
limit is violated, a flag in Main Device byte
70h is set.

12 to 13

EEPROM

R/W

00

MON1limlo (MSB to LSB)

Contains lower limit settings for MON1. If the
limit is violated, a flag in Main Device byte
70h is set.

14 to 17

EEPROM

00

Reserved

18 to 19

EEPROM

R/W

00

MON2limhi (MSB to LSB)

Contains upper limit settings for MON2. If the
limit is violated, a flag in Main Device byte
70h is set.

1A to 1B

EEPROM

R/W

00

MON2limlo (MSB to LSB)

Contains lower limit settings for MON2. If the
limit is violated, a flag in Main Device byte
70h is set.

Main Device

Note: SRAM defaults are power-on defaults. EEPROM defaults are factory defaults.

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