AD73322 Analog Devices, AD73322 Datasheet - Page 20

• Manufacturer Part Number: AD73322
• Description: Low Cost/ Low Power CMOS General-Purpose Dual Analog Front End
• Manufacturer: Analog Devices

AD73322
Address (Binary)
000
001
010
011
100
101
110
111
Control
Bit 15
Bit 14
Bits 13–11
Bits 10–8
Bits 7–0
C/D
15
R/W
14
Control/Data
Read/Write
Device Address
Register Address
Register Data
Frame
13
Device Address
12
Name
CRA
CRB
CRC
CRD
CRE
CRF
CRG
CRH
11
Description
When set high, it signifies a control word in Program or Mixed Program/Data Modes. When
set low, it signifies a data word in Mixed Program/Data Mode or 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 input 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 se-
lected. 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 AD73322.
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.
Register Address
10
Table XIII. Control Word Description
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
Table XII. Control Register Map
9
8
–20–
7
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
6
5
Register Data
4
Width
8
8
8
8
8
8
8
8
3
2
Reset Setting (Hex)
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
1
REV. B
0