R

EM3027

Copyright © 2009, EM Microelectronic-Marin SA

12/09 – rev D

11

www.emmicroelectronic.com

Timer Page - Registers TimLow, TimHigh

TimLow

Timer value (Low byte)

TimHigh

Timer value (High byte)

Temperature Page - Register Temp

Temp

Temperature (range from -60° C to 190°C with 0°C corresponding to a content of 60d)

EEPROM Data Page - Register EEData

EEData

General purpose EEPROM data bytes

EEPROM Control Page - Register EEctrl

R80k, R20k,

R5k, R1.5k

FD0, FD1

Selects clock frequency at IRQ/CLKOUT pin.

ThEn

Enables thermometer (‘0’ = disabled; ‘1’ = enabled)

ThPer

Selects thermometer activation period (‘0’ = 1 second; ‘1’ = 16 seconds)

EEPROM Control Page - Register XtalOffset

XtalOffset

60 ppm.

Note

: Coefficient 1.05 (exactly 1.048576) is the result of the internally used frequency compensating method.

EEPROM Control Page - Register Qcoef

Qcoef

Thermal quadratic coefficient of the crystal. Example: value 151d is related to 0.035 ppm/°C²,

EEPROM Control Page - Register TurnOver

TurnOver

Turnover temperature of the crystal (values 0 to 63d are related to temperature 4 to 67 °C).

Example: value 21d is related to 25°C.

RAM Page - Register RAMdata

RAMdata

General purpose RAM data bytes