W3150A+ WIZnet, W3150A+ Datasheet - Page 24

no-image

W3150A+

Manufacturer Part Number
W3150A+
Description
Ethernet ICs ENET CONTR TCP/IP+MAC
Manufacturer
WIZnet
Datasheet

Specifications of W3150A+

Rohs
yes
Product
Ethernet Transceivers
Supply Voltage - Max
3.6 V
Supply Voltage - Min
3 V
Maximum Operating Temperature
+ 80 C
Package / Case
LQFP-64
Ethernet Connection Type
10Base-T, 100Base-TX
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
RCR (Retry Count Register) [R/W] [0x0019] [0x08]
This register sets the number of re-transmission. If retransmission occurs more than the number recorded
in RCR, 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 each socket.
The memory size according to the configuration of S1, S0, is as below.
According 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 2K memory is assigned to each 4 sockets respectively.
Ex) When setting as 0xAA, the 4KB memory should be assigned to each socket.
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, socket 2 and 3 are not absolutely used.
TMSR(TX Memory Size Register) [R/W] [0x001B] [0x55]
This register is used in assigning total 8K TX Memory to sockets. Configuration can be done in the same
way of RX Memory Size Register (RMSR). The initial value is 0x55 and it is to assign 2K memory to 4 sockets
respectively.
S1
S1
0
0
1
1
7
Socket 3
Socket 3
0KB
S0
S0
0
1
0
1
6
© Copyright 2006 WIZnet Co., Inc. All rights reserved.
S1
5
Memory size
Socket 2
Socket 2
1KB
2KB
4KB
8KB
0KB
S0
4
- 23 -
S1
3
Socket 1
Socket 1
4KB
S0
2
S1
1
Socket 0
Socket 0
4KB
S0
0

Related parts for W3150A+