W7100A WIZnet, W7100A Datasheet - Page 100

• 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.
+ 0x100n)][0x0000]
PPPoE mode, S0_DPORT0 sets PPP session ID that is already known.
SERVER" before performing the CONNECT command.
transmitting UDP DATA packets before performing SEND or SEND_MAC command.
session ID (set by S0_DPORT0) is applied to PSIDR after performing the OPEN command.
(0xFE4013 + 0x100n)][0x0000]
It supports TCP or UDP mode. When using PPPoE (MR(PPPoE)=‘1’), the MTU of the TCP or UDP
mode is assigned in the range of the MTU of PPPoE.
Therefore, when transmitting data bigger than the default MTU, the host should manually
divide the data into the default MTU unit.
value between the user setting value and default value. If there is no user setting value, MSSR
is changed to default value.
divides the data into the MTU unit.
peer's MSS, MSS is automatically set as the smaller value through the TCP connection process.
just used. When communicating with the peer having a different MTU, W7100A is able to
receive ICMP (Fragment MTU) packets. So, the user should close the SOCKET, set FMTU as
Sn_DPORT (SOCKET n Destination Port Register)[R/W][(0xFE4010 + 0x100n) – (0xFE4011
The destination port number is set in the Sn_DPORT of SOCKET n. If SOCKET 0 is used as
It is valid only in TCP, UDP or PPPoE mode, and ignored in other modes.
At the TCP mode, when operating as "TCP CLIENT", it listens for the port number of the "TCP
At the UDP mode, the destination port number is set in the Sn_DPORT to be used for
At the PPPoE mode, the PPP session ID that is already known is set in the S0_DPORT. PPP
Sn_MSSR (SOCKET n Maximum Segment Size Register)[R/W][(0xFE4012 + 0x100n) –
It sets the MTU (Maximum Transfer Unit) of SOCKET n or notifies the MTU that is already set.
At the IPRAW or MACRAW, MTU is not processed internally, but the default MTU is used.
Reset value is 0 in the SOCKET initialization process, but the MSSR is changed to the smaller
At the TCP or UDP mode, if transmitting data is bigger than the MTU, W7100A automatically
MTU is known as MSS in the TCP mode. By selecting from the Host-Written-Value and the
At the UDP mode, there is no connection-process of TCP mode, and Host-Written-Value is
Ex) In case of SOCKET 0 Destination IP address = 192.168.0.11, configure as below,
Ex) In case of SOCKET 0 Destination Port = 5000(0x1388), configure as below,
192 (0xC0)
0xFE400C
0xFE4010
0x13
168 (0xA8)
0xFE400D
0xFE4011
0x88
0xFE400E
0 (0x00)
11 (0x0B)
0xFE400F
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