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W5100 Datasheet(PDF) 21 Page - WIZnet Co., Ltd |
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W5100 Datasheet(HTML) 21 Page - WIZnet Co., Ltd |
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21 / 72 page  © Copyright 2009-2011 WIZnet Co., Inc. All rights reserved. 20 4. Register Descriptions 4.1 Common Registers MR (Mode Register) [R/W] [0x0000] [0x00] This register is used for S/W reset, ping block mode, PPPoE mode and Indirect bus I/F. 7 6 5 4 3 2 1 0 RST PB PPPoE AI IND Bit Symbol Description 7 RST S/W Reset If this bit is ‘1’, internal register will be initialized. It will be automatically cleared after reset. 6 Reserved Reserved 5 Reserved Reserved 4 PB Ping Block Mode 0 : Disable Ping block 1 : Enable Ping block If the bit is set as ‘1’, there is no response to the ping request. 3 PPPoE PPPoE Mode 0 : Disable PPPoE mode 1 : Enable PPPoE mode If you use ADSL without router or etc, you should set the bit as ‘1’ to connect to ADSL Server. For more detail, refer to the application note, “How to connect ADSL”. 2 Not Used Not Used 1 AI Address Auto-Increment in Indirect Bus I/F 0 : Disable auto-increment 1 : Enable auto-increment At the Indirect Bus I/F mode, if this bit is set as ‘1’, the address will be automatically increased by 1 whenever read and write are performed. For more detail, refer to “6.2 Indirect Bus IF Mode”. 0 IND Indirect Bus I/F mode |
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