W7100A WIZnet, W7100A Datasheet - Page 113

• Manufacturer Part Number: W7100A
• Description: 8-bit Microcontrollers - MCU 8051 CORE+HARDWIRED TCP/IP+MAC+PHY
• Manufacturer: WIZnet

Specifications of W7100A

• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 255 B
• Data Ram Size: 64 KB
• On-chip Adc: No
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 80 C
• Package / Case: LQFP-100
• Mounting Style: SMD/SMT
• Interface Type: UART
• Program Memory Type: Flash

© Copyright 2011 WIZnet Co., Inc. All rights reserved.
9.2
MACRAW mode. W7100A can transmit and receive the data with others by ‘open’ the SOCKET.
The W7100A supports the independently and simultaneously usable 8 SOCKETS. In this section,
the communication method for each mode will be introduced.
9.2.1
its own IP address, port number and destination IP address, port number. Then transmits and
receives the data by using this SOCKET.
divided by transmitting the connect-request (SYN packet).
connection SOCKET by accepting the transmitted connect-request (Passive-open).
connection (Active-open).
After the W7100A initialization process, open the SOCKET to TCP or UDP or IPRAW or
The TCP is a connection-oriented protocol. The TCP make the connection SOCKET by using
Methods of making the connection to SOCKET are “TCP SERVER” and “TCP CLIENT”. It is
The “TCP SERVER” listens to the connect-request from the “TCP CLIENT”, and makes
The “TCP CLIENT” transmits the connect-request first to “TCP SERVER” to make the
Data Communication
TCP
Figure 9.2 TCP SERVER & TCP CLIENT
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