Datasheet

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EEH210

7.2. sPi reaD

Figure 16: SPI read protocol in 3-wires mode

7.3. register maPPing

Table 13: Register mapping

NAME TYPE REGISTER ADDRESS (HEX) DEFAULT (HEX)

DEVICE ID R 0F 00

ADC_RESOL R/W 10 00

CTRL_REG1 R/W 20 00

CTRL_REG2 R/W 21 00

CTRL_REG3 R/W 22 00

STATUS_REG R 27 00

HUMIDITY_OUT_L

28 Output

HUMIDITY_OUT_H R 29 Output

TEMP_OUT_L R 2A Output

TEMP_OUT_H R 2B Output

7.4. register DescriPtion

DEVICE ID

Table 14: Device ID

7 6 5 4 3 2 1 0

1 0 1 1 1 1 0 0

Address: 0Fh (R)

Description: This read-only register contains the device identifier, set to BCh

ADC_RESOL

Table 15: ADC_Resol

7 6 5 4 3 2 1 0

Reserved - TRES1 TRES0 - RHRES1 RHRES0

Address: 10h (R/W)

Description: [7:5], [2] Reserved

[4:3] TRES1-0: To select ADC resolution of Temperature measurement.

[1:0] RHRES1-0: To select ADC resolution of Humidity measurement.

Table 16: ADC_Resol

[TRES1:TRES0] RESOLUTION [RHRES1:RHRES0] RESOLUTION

00 14bit 00 12bit

01 13bit 01 11bit

10 12bit 10 10bit

11 11bit 11 8bit

CTRL_REG1

Table 17: CTRL_REG1

7 6 5 4 3 2 1 0

PD Reserved BDU ODR1 ODR0