EVB-B1+ WIZnet, EVB-B1+ Datasheet - Page 84

• Manufacturer Part Number: EVB-B1+
• Description: Development Boards & Kits - ARM W3150A+EVAL BOARD BASED ON AVR
• Manufacturer: WIZnet

Specifications of EVB-B1+

• Rohs: yes
• Product: Evaluation Boards
• Interface Type: RS-232, SPI
• Operating Supply Voltage: 3.3 V, 5 V
• Data Bus Width: 8 bit
• Dimensions: 50 mm x 40 mm
• Processor Series: ATmega128

<Fig 3.31: check_DHCP_state()>
check_DHCP_state() processes correspondingly with DHCP client state through the series of processes
shown in <Fig 3.31>. If we take a look at DHCP_STATE_LEASED state at check_DHCP_state(), the Lease
Time received from DHCP server is finite, in case that half of the Lease Time passed, it sends
DHCP_REQEUST Message to DHCP Server and changes it as DHCP_STATE_REREQUEST after it backs
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