ADM1266ACPZ-R7 datasheet(46/62 Pages) AD

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ADM1266

Data Sheet

Rev. A | Page 46 of 62

Bits

Bit Name

R/W

Description

0111 = 8.0 µs.

1000 = 10.0 µs.

1001 = 20.0 µs.

1010 = 40.0 µs.

1011 = 50.0 µs.

1100 = 60.0 µs.

1101 = 75.0 µs.

1110 = 80.0 µs.

1111 = 100.0 µs.

[8:3]

Reserved

R/W

Reserved.

[2:0]

PDIO_OUTPUT_CFG

R/W

Output configuration. Sets the configuration of the PDIOx output drivers.

000 = 20 kΩ pull-down resistor. The resistor is enabled even during power-up.

001 = 20 kΩ pull-up resistor to AVDD. The resistor is enabled even during power-up.

010 = open source with 20 kΩ pull-down resistor.

011 = open drain with 20 kΩ pull-up resistor to AVDD.

100 = open source (requires external pull-down resistor).

101 = open drain (requires external pull-up resistor).

110 = push/pull output driver.

111 = high-Z.

DAC_CONFIGURATION

This command either block writes or reads the DAC configuration.

Table 59. Register 0xD5—DAC_CONFIGURATION (for Block WR)

Byte

Byte Name

R/W

Description

Parameter length

Block W

Parameter data length, fixed to 1.

DAC index

parameter

Block W

00000 = DAC1.

00001 = DAC2.

00010 = DAC3.

00011 = DAC4.

00100 = DAC5.

00101 = DAC6.

00110 = DAC7.

00111 = DAC8.

01000 = DAC9.

Setting this byte to 0xFF means the device reads back data for all DACs.

Data length

Block R

The length of the DAC configuration data that ADM1266 returns. Set to 2 when DAC index

parameter < 9, 18 when DAC index parameter is 0xFF.

[18:1]

Data

Block R

Data for DAC configuration.

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