ZSSC3123AI2R datasheet(48/67 Pages) RENESAS

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ZSSC3123 Datasheet

August 16, 2018

12.1 IDT Configuration Register (ZMDI_Config, EEPROM Word 02HEX)

This register is loaded at power-on reset and upon exiting Command Mode using a Start_NOM command.

Table 29. ZMDI_Config Bit Assignments

Bit Range

IC Default

Name

Description and Notes

0BIN

Measurement_Mode

0 = Update Mode

1 = Sleep Mode

2:1

00BIN

Power_Down_Period

Power Down Period: [a]

00BIN = 0ms

01BIN = 5ms

10BIN = 25ms

11BIN = 125ms

0BIN

Scale_Sot_Tc

Scales the SOT TC Terms:

0 = Scale

 1

1 = Scale

 2

0BIN

Gain4x_C

Multiply Gain_1 and Gain_2 by

0 = multiply by 1

1 = multiply by 4

7:5

000BIN

EEPROM_lock

011BIN = locked

All other = unlocked

When EEPROM is locked, the internal charge pump is disabled

and the EEPROM can no longer be programmed.

Note: If the EEPROM was accidentally locked, see section 12 for

instructions for unlocking it.

10:8

011BIN

Comm_lock

011BIN = locked

All other = unlocked

When communication is locked, I2C communication will only

respond to its programmed address; otherwise if communication is

unlocked, I2C will respond to any address.

13:11

001BIN

Output_Selection

001BIN = I2C

011BIN = SPI

100BIN = PDM Capacitance (+ 2 alarms)

110BIN = PDM Capacitance + Temperature (+ 1 alarm)

All other configurations are not allowed

See Table 20 for more details.

0BIN

Third_order

0 = Piece-wise linear calibration with breakpoint

1 = Third-order calibration

0BIN

Not Available

Do Not Change – must leave at factory settings

[a] All time values shown are typical; for the worst case values, multiply by 1.1 (nominal frequency ±10%).

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