W7100A-64QFN WIZnet, W7100A-64QFN Datasheet - Page 97

• Manufacturer Part Number: W7100A-64QFN
• Description: 8-bit Microcontrollers - MCU 8051 CORE+HARDWIRED TCP/IP+MAC+PHY
• Manufacturer: WIZnet

Specifications of W7100A-64QFN

• Rohs: yes
• Interface Type: UART

© Copyright 2011 WIZnet Co., Inc. All rights reserved.
Below table shows the temporary status which can be observed when changing the Sn_SR.
Value
0x15
0x16
0x18
0x1A
0X1B
0X1D
0x01
SOCK_SYNSENT
SOCK_SYNRECV
SOCK_FIN_WAIT
SOCK_CLOSING
SOCK_TIME_WAIT
SOCK_LAST_ACK
SOCK_ARP
Symbol
This status indicates that a connect-request(SYN packet) is
sent to a "TCP SERVER".
SYNSENT is an intermediate state between SOCK_INT and
SOCK_ESTABLISHED. If connect-accept(SYN/ACK packet) is
received
automatically changes to SOCK_ESTBLISHED. However, if
SYN/ACK packet is not received before TCP timeout occurs
(Sn_IR(TIMEOUT)=‘1’),
SOCK_CLOSED.
This status indicate that a connect-request(SYN packet) is
received from a "TCP CLIENT".
The socket status changes to SOCK_ESTABLISHED when
W7100A successfully transmits connect-accept (SYN/ACK
packet) to a "TCP CLIENT". If W7100A fails to send and TCP
occurs (Sn_IR(TIMEOUT)=‘1’), the status is changed to
SOCK_CLOSED.
These statues show the process of terminating a connection.
If the termination succeeds or Timeout interrupt is asserted,
the socket status is changed to SOCK_CLOSED.
This status indicates an ARP-request is being transmitted to
a peer in order to acquire destination hardware address.
It appears when the SEND command is used in UDP, IP RAW,
and TCP mode, the socket status changes to SOCK_ARP.
If the hardware address is successfully acquired from the
destination (ARP-response is received), the socket status
changes to SOCK_UDP, SOCK_IPRAW or SOCK_SYNSENT.
On the other hand, when W7100A fails to acquire the
hardware
(Sn_IR(TIMEOUT)= ‘1’), the socket status returns to the
previous state in UDP mode and IP RAW mode. In TCP mode,
the socket status goes to the SOCK_CLOSED state.
changed to SOCK_PPPoE when S0_MR(P3:P0) = S0_MR_PPPoE
and S0_CR = OPEN.
from
address
a
"TCP SERVER",
and
Description
the
an
status
ARP
the
is
Ver. 1.12
timeout
SOCKET status
changed
occurs
to
TO
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