W3150 Datasheet, PDF (23/59 Pages) List of Unclassifed Manufacturers – WIZnet’s Online Technical Support

0 IM_IR0 Occurrence of Socket 0 Socket Interrupt Enable
RTR (Retry Time-value Register) [R/W] [0x0017 – 0x0018] [0x07D0]
This register sets the period of timeout. Vaule 1 means 100us. The initial value is 2000(0x07D0). That will be
set as 200ms.
Ex) For 400ms configuration, set as 4000(0x0FA0)
0x0017
0x0018
0x0F
0xA0
Re-transmission will occur when there is no response from the remote peer to the commands of CONNECT,
DISCON, CLOSE, SEND, SEND_MAC and SEND_KEEP, or the response is delayed.
RCR (Retry Count Register) [R/W] [0x0019] [0x08]
This register sets the number of re-transmission. If retransmission occurs more than recorded number,
Timeout Interrupt (TIMEOUT bit of Socket n Interrupt Register (Sn_IR) is set as ‘1’) will occur.
RMSR(RX Memory Size Register) [R/W] [0x001A] [0x55]
This register assigns total 8K RX Memory to the socket.
7
6
Socket 3
S1
S0
5
4
Socket 2
S1
S0
3
2
Socket 1
S1
S0
1
0
Socket 0
S1
S0
The memory size according to the configuration of S1, S0, is as below.
S1
S0
Memory size
0
0
1KB
0
1
2KB
1
0
4KB
1
1
8KB
Accoridng to the value of S1 and S0, the memory is assigned to the sockets from socket 0 within the range
of 8KB. If there is not enough memory to be assigned, the socket should not be used. The initial value is
0x55 and the memory is assined to 4 sockets respectively with 2K.
Ex) When setting as 0xAA, the memory should be assigned to each socket with 4KB.
However, the total memory size is 8KB. The memory is normally assigned to the socket 0 and 1, but not to
the socket 2 and 3. Therefore, user should not use socket 2 and 3 absolutely.
Socket 3
Socket 2
Socket 1
Socket 0
0KB
0KB
4KB
4KB
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