W7100A WIZnet, W7100A Datasheet - Page 119

• 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

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
disconnect the connection SOCKET.
{
}

First method :
{
}
Second method :
{
}

the DATA packet or its response(DATA/ACK packet), the Disconnect-request(FIN packet) or its
response(FIN/ACK packet) and transmission all TCP packet. If it cannot transmit the above
packets within ‘timeout’ which is configured at RTR and RCR, the TCP final timeout(TCP
occurs and the state of Sn_SR is changed to SOCK_CLOSED. Confirming method of the TCP
as below:
First method :
{
}
Second method :
{
}
When the user does not need data communication with others, or receives a FIN packet,
Confirm that the SOCKET n is disconnected or closed by DISCON or close command.
The timeout can occur by Connect-request(SYN packet) or its response(SYN/ACK packet),
Sn_CR = DISCON;
if (Sn_IR(DISCON) == ‘1’) goto CLOSED stage;
/* In this case, if the interrupt of SOCKET n is activated, interrupt occurs. Refer to IR, IMR
if (Sn_SR == SOCK_CLOSED) goto CLOSED stage;
if (Sn_IR(TIMEOUT bit) == ‘1’) Sn_IR(TIMEOUT)=‘1’; goto CLOSED stage;
/* In this case, if the interrupt of SOCKET n is activated, interrupt occurs. Refer to IR, IMR
if (Sn_SR == SOCK_CLOSED) goto CLOSED stage;
/* set DISCON command */
ESTABLISHMENT : Check disconnect / disconnecting process
ESTABLISHMENT : Check closed
ESTABLISHMENT : Timeout
Sn_IMR and Sn_IR. */
Sn_IMR and Sn_IR. */
Ver. 1.12
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