W7100A WIZnet, W7100A Datasheet - Page 114

• 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.
9.2.1.1 TCP SERVER
the SOCKET. The SOCKET opening process selects one SOCKET from 8 SOCKETS of the W7100A,
and sets the protocol mode (Sn_MR(P3:P0)) and Sn_PORT0 which is source port number (Listen
port number in “TCP SERVER”) in the selected SOCKET, and then executes OPEN command.
After the OPEN command, if the status of Sn_SR is changed to SOCK_INIT, the SOCKET
initialization process is completed.
The Initialization process of SOCKET n in TCP mode is shown below.
{
START:

SOCKET initialization is required for TCP data communication. The initialization is opening
The SOCKET initialization process is identically applied in “TCP SEVER” and “TCP CLIENT”.
Sn_MR = 0x0001;
SOCKET Initialization
Figure 9.3 “TCP SERVER” Operation Flow
// sets TCP mode
Ver. 1.12
114