ADPD6000 datasheet(72/89 Pages) AD

72 / 89 page

Data Sheet

ADPD6000

analog.com

Rev. 0 | 72 of 89

Table 21. Register Details

Reg

Name

Bits

Bit Name

Description

Reset Access

00: use GPIO0 for external sync (default).

01: use GPIO1 for external sync.

10: use GPIO2 for external sync.

0x002F FIFO_DATA

[15:0]

FIFO_DATA

FIFO data port.

0x0

0x0046 ADC_CONTROL

[15:14]

RESERVED

Reserved.

0x0

ECG_ADC_CTRL

Must write 1.

0x1

R/W

[12:3]

RESERVED

Reserved.

0x0

PPG_ADC_CTRL1

Must write 1.

0x1

R/W

[1:0]

PPG_ADC_CTRL2

Set to 0x0 when PPG is enabled for better ambient rejection.

0x3

R/W

0x004C GLOBAL_BIAS_CONTROL

[15]

RESERVED

Reserved.

0x0

TIA_DETECT_CTRL

Must write 1.

0x1

R/W

[13:4]

RESERVED

Reserved.

0x0

[3:0]

GLOBAL_BIAS_TRIM

Set to 0xB for lower global current bias.

0x0

R/W

0x0057 IO_ADJUST

[15:7]

RESERVED

Reserved.

0x0

LOW_IOVDD_EN

Set to 0x0 if IOVDD of 3 V or higher is used. Default value of

0x1 is used for IOVDD lower than 3 V, because the typical value

of IOVDD is 1.8 V.

0x1

R/W

[5:4]

RESERVED

Reserved.

0x1

R/W

[3:2]

SPI_SLEW

Slew control for SPI pins.

0x0

R/W

00: slowest.

01: slow.

10: fastest.

11: fast.

[1:0]

SPI_DRV

Drive control for SPI pins.

0x0

R/W

00: medium.

01: weak.

10: strong.

11: strong.

0x005B PPG_TIA_CONTROL

[15:12]

RESERVED

Reserved.

0x0

[11:10]

TIA_DETECT_CTRL

Set to 0x3 when PPG is enabled for better ambient rejection.

0x0

R/W

[9:7]

RESERVED

Reserved.

0x0

[6:0]

TIA_MODE

Must write 0x20.

0x20

R/W

0x0074 ECG_ACLO_CONTROL

[15:11]

RESERVED

Reserved.

0x0

[10:0]

ECG_ACLO_LPF_COEF

Set to 0x28 when ECG is enabled.

0x50

R/W

0x0077 ECG_PGA_CONTROL

[15:9]

RESERVED

Reserved.

0x0

ECG_PGA_CTRL

Set to 0x1 when ECG is enabled for power optimization.

0x0

R/W

[7:0]

RESERVED

Reserved.

0x0

0x0078 ECG_INPUT_CONTROL

ECG_INPUT_BUF_EN

Set to 0x1 to enable the ECG input buffer.

0x0

R/W

[14:12]

RESERVED

Reserved.

0x0

ECG_INPUT_BUF_CTRL

Set to 0x1 when ECG input buffer is enabled.

0x0

R/W

[10:0]

RESERVED

Reserved.

0x0

0x0100 ECG_ANA_CTRL

[15:11]

RESERVED

Reserved.

0x0

ECG_INP_CONNECT

ECG input connection. Set 1 to connect the ECG inputs.

0x1

R/W

ECG_SHORT

ECG short switches. When set 1, the ECG_SHORT bits

internally short the inputs of ECG. The feature can be used

for ECG noise measurements.

0x0

R/W

ECG_CHAN_RESOLUTION

Select ECG channel resolution.

0x0

0: 288 nV/LSB.

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