AD73360AR Просмотр технического описания (PDF) - Analog Devices

Номер в каталоге

Компоненты Описание

Список матч

AD73360AR

Six-Input Channel Analog Front End

Analog Devices 

AD73360

SPORT Register Maps

There are eight control registers for the AD73360, each eight

bits wide. Table V shows the control register map for the

AD73360. The first two control registers, CRA and CRB, are

reserved for controlling the SPORT. They hold settings for

parameters such as bit rate, internal master clock rate and de-

vice count. If multiple AD73360s are cascaded, registers CRA

and CRB on each device must be programmed with the same

setting to ensure correct operation (this is shown in the pro-

gramming examples). The other six registers; CRC through

CRH are used to hold control settings for the Reference, Power

Control, ADC channel and PGA sections of the device. It is

not necessary that the contents of CRC through CRH on

each AD73360 are similar. Control registers are written to on

the negative edge of SCLK.

Address (Binary)

000

001

010

011

100

101

110

111

Name

CRA

CRB

CRC

CRD

CRE

CRF

CRG

CRH

Table V. Control Register Map

Description

Control Register A

Control Register B

Control Register C

Control Register D

Control Register E

Control Register F

Control Register G

Control Register H

Type

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Width

8

8

8

8

8

8

8

8

Reset Setting (Hex)

0x00

0x00

0x00

0x00

0x00

0x00

0x00

0x00

Table VI. Control Word Description

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

C/D

R/W

DEVICE ADDRESSS REGISTER ADDRESS

REGISTER DATA

Control

Bit 15

Bit 14

Bits 13–11

Bits 10–8

Bits 7–0

Frame

Control/Data

Read/Write

Device Address

Register Address

Register Data

Description

When set high, it signifies a control word in Program or Mixed Program/Data Modes. When set

low, it signifies an invalid control word in Program Mode.

When set low, it tells the device that the data field is to be written to the register selected by the

register field setting provided the address field is zero. When set high, it tells the device that the

selected register is to be written to the data field in the serial register and that the new control

word is to be output from the device via the serial output.

This 3-bit field holds the address information. Only when this field is zero is a device selected. If

the address is not zero, it is decremented and the control word is passed out of the device via the

serial output.

This 3-bit field is used to select one of the eight control registers on the AD73360.

This 8-bit field holds the data that is to be written to or read from the selected register provided

the address field is zero.

–14–

REV. A

Share Link: