AD7779 datasheet(72/97 Pages) AD

72 / 97 page

AD7779

Data Sheet

Rev. 0 | Page 72 of 97

GPIO CONFIGURATION REGISTER

Address: 0x017, Reset: 0x00, Name: GPIO_CONFIG

GPIO input/output

[7:3] RESERVED

[2:0] GPIO_OP_EN (R/W)

Table 67. Bit Descriptions for GPIO_CONFIG

Bits

Bit Name

Settings

Description

Reset

Access

[7:3]

RESERVED

Reserved.

0x0

R/W

[2:0]

GPIO_OP_EN

GPIO Input/Output

0x0

R/W

GPIO DATA REGISTER

Address: 0x018, Reset: 0x00, Name: GPIO_DATA

Value s ent to GPIO pins

Data read from GPIO pins

[7:6] RESERVED

[2:0] GPIO_WRITE_DATA (R/W)

[5:3] GPIO_READ_DATA (R)

Table 68. Bit Descriptions for GPIO_DATA

Bits

Bit Name

Settings

Description

Reset

Access

[7:6]

RESERVED

Reserved.

0x0

R/W

[5:3]

GPIO_READ_DATA

Data Read from the GPIO Pins

0x0

[2:0]

GPIO_WRITE_DATA

Value Sent to the GPIO Pins

0x0

R/W

BUFFER CONFIGURATION 1 REGISTER

Address: 0x019, Reset: 0x38, Name: BUFFER_CONFIG_1

Reference buffer pos itive enable

Reference buffer negative enable

[7] RESERVED

[0] RESERVED

[6] RESERVED

[1] RESERVED

[5] RESERVED

[2] RESERVED

[4] REF_BUF_POS_EN (R/W)

[3] REF_BUF_NEG_EN (R/W)

Table 69. Bit Descriptions for BUFFER_CONFIG_1

Bits

Bit Name

Settings

Description

Reset

Access

[7:5]

RESERVED

Reserved

0x0

R/W

REF_BUF_POS_EN

Reference Buffer Positive Enable

0x1

R/W

REF_BUF_NEG_EN

Reference Buffer Negative Enable

0x1

R/W

[2:0]

RESERVED

Reserved

0x0

R/W

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