W3150 Datasheet, PDF (19/59 Pages) List of Unclassifed Manufacturers – WIZnet’s Online Technical Support

4. Register Descriptions
4.1. Common Registers
MR (Mode Register) [R/W] [0x0000] [0x00]¹
This Register is used for S/W Reset, memory test mode, ping block mode, PPPoE mode and Indirect bus I/F.
7
6
RST
5
4
3
2
MT
PB
PPPoE
LB
1
0
AI
IND
Bit Symbol
Description
S/W Reset
7
RST
If this bit is ‘1’, internal register will be initialized. It will be automatically cleared with
Reset.
6 Reserved Reserved
Memory Test Mode
0 : Disable memory test mode
1 : Enable memory test mode
TX memory is used for data transmission. In this memory, only WRITE can be performed.
5
MT
At the RX memory, users can receive data and only READ can be performed. If a user
wants to perform both of WRITE and READ in order to check operation status of TX
memory and RX memory, the bit should be set as ‘1’. Memory Test Mode is used only for
checking of TX/RX memory operation status. For the general usage, Memory Test Mode
should be cleared first.
Ping Block Mode
0 : Disable Ping block
4
PB
1 : Enable Ping block
If the bit is set as ‘1’, there is no response to the Ping request.
PPPoE Mode
0 : Disable PPPoE mode
1 : Enable PPPoE mode
3 PPPoE If you are under the circumstance of PPPoE such as ADSL, you should set the bit as ‘1’,
and connect to PPPoE SERVER. For more detail, refer to 5.3 Usage of PPPoE SERVER.
1 _{[Read/Write] [Address] [Reset value]}
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