MAX3111EEVKIT+ Maxim Integrated, MAX3111EEVKIT+ Datasheet - Page 4

• Manufacturer Part Number: MAX3111EEVKIT+
• Description: UART Interface IC Evaluation Kit for the MAX3111E
• Manufacturer: Maxim Integrated

Specifications of MAX3111EEVKIT+

• Number Of Channels: 2
• Data Rate: 250 Kbps
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Supply Current: 1.4 mA

The PC UART Setting group box configures the PC
serial port that communicates with the EV kit to the set-
ting in the PC UART Setting group box. After the Open
button is pressed and the port is opened successfully,
the PC serial port settings cannot be changed until the
port is closed. To change the serial port setting, or
release the serial port, close the PC serial port by
pressing the Close button.
For the PC serial port to communicate with the EV kit,
both the PC and EV kit serial ports should be config-
ured exactly the same. Set the SW5 and SW6 DIP
switches on the EV kit board appropriately and then
press and release SW1. The on-board µC reads DIP
switch on/off states and writes a 16-bit word to config-
ure the MAX3111E.
MAX3111E Evaluation Kit
Figure 2. MAX3111E EV Kit Software Main Window
4
_______________________________________________________________________________________
Setting the PC UART
Press the Read Conf. Reg. button inside the PC Sends
a Read Configuration Register Command to EV Kit
group box to send a command (0x07) from the PC to
the EV kit. When the µC receives and parses the
meaning of the command, the µC reads the MAX3111E
configuration register and groups the 14 register bits
into 2 bytes. The µC then writes the 2 bytes to the
MAX3111E’s write-data register. The PC receives the 2
bytes of data and displays the corresponding configu-
ration-register bits on the GUI.
Reading the MAX3111E
Configuration Register