ZSC31015EEG1-R datasheet(23/52 Pages) IDT

23 / 52 page

November 14, 2016

ZSC31015 Datasheet

Functional Description

3.1.

General Working Mode

The command/data transfer takes place via the one-

wire SIG™ pin using the ZACwire

TM serial communication

protocol.

After power-on, the ZSC31015 waits for 3ms (= Command window) for the Start_CM command.

Without this command, the Normal Operation Mode (NOM) starts. In this mode, raw bridge values are converted,

and the corrected values are presented on the output in analog or digital format (depending on the configuration

stored in EEPROM).

Command Mode (CM) can only be entered during the 3ms command window after power-on. If the ZSC31015

receives the Start_CM command during the command window, it remains in the Command Mode. The CM allows

changing to one of the other modes via command. After the command Start_RW, the ZSC31015 is in the Raw

Mode (RM). Without correction, the raw values are transmitted to the digital output in a predefined order. The RM

can only be stopped by a power-off. RM is used by the calibration software for collection of raw bridge and

temperature data so the correction coefficients can be calculated.

If diagnostic features are enabled and a diagnostic fault is detected, diagnostic states are indicated as follows

depending on the programmed mode:



In Analog Output Mode,

diagnostic states are indicated by an output below 2.5% of VDD or above 97.5% of VDD.



In Digital Output Mode,

diagnostic states will be indicated by a transmission with a generated parity error.

For more details see section 2.6.

ZSC31015EEG1-R Datasheet(PDF) 23 Page - Integrated Device Technology