Datasheet
MAX9880A Evaluation Kit
Evaluates: MAX9880A
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SPI Interface
The SPI interface is configured and used by select-
ing the 3-wire Interface tab. The Connection and
Configuration group boxes are used to configure the
SPI interface. The EV kit’s SPI connections and default
interface configuration are shown in Table 13 and Figure
20, respectively.
The SPI interface can be used to read and write to the U1
and U11 devices. The slave device is selected by con-
figuring K2 (U1, CS2) or K9 (U11, CS1) as the interface’s
chip-select. Refer to the MAX9880A and CS8427 IC data
sheets for additional SPI information.
To communicate with the U1 device, enter the 24-bit
(3-byte) SPI frame into the Data bytes to be written
edit box and press the Send Now button. For a read
operation, the data received is displayed in the Data
bytes received edit box. Refer to the Serial Peripheral
Interface (SPI) section in the MAX9880A IC data sheet
for additional information.
Figure 19. Advanced User Interface (2-Wire Interface Tab’s General Commands Tab)