Datasheet

EVAL-AD7294

Rev. 0 | Page 11 of 24

The Register Map window is a useful tool that allows reading

any register that can be accessed by the address pointer register.

For more information, see the AD7294 data sheet. Each data

and then the contents are displayed in this window. The window

provides details about the function or mode represented by each

bit, as shown in Figure 16. The Register Details box of this

window allows the user to see the decimal value of a register

and its position in the address pointer register.

DEVICE ADDRESS INFORMATION WINDOW

The serial bus address byte is the first byte that the user writes

to the device. The five LSBs of this byte are user programmable

on the evaluation board, with the I

C address determined by the

logic state of the AS1, AS2, and AS3 pins (that is, by connecting

jumpers to the AS1, AS2, and AS3 pins). For more information,

see the AD7294 data sheet. With a jumper inserted, the signal is

grounded; therefore, K7 reads 0 with a jumper inserted (see

Figure 17).

07922-016

Figure 16. Register Map Window

07922-017

This is the I2C Slave Address of the AD7294. The Address can be

changed by inserting or removing the jumpers K9, K8 and K7 prior

to power up.

Once the part is powered up, the I2C Address cannot be changed.

Figure 17. Device Address Information Window