Ds1854, Auxiliary device, Main device – Rainbow Electronics DS1854 User Manual
Page 12
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
____________________________________________________________________
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.