Data Sheet

iEthernet W5200

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 and PPPoE mode.

7 6 5 4 3 2 1 0

RST

PB PPPoE

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 : DisablePPPoE mode

1 : EnablePPPoE 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 Reserved Reserved

1 Reserved Reserved

0 Reserved Reserved

GAR (Gateway IP Address Register) [R/W] [0x0001 – 0x0004] [0x00]

This Register sets up the default gateway address.

Ex) In case of “192.168.0.1”

0x0001 0x0002 0x0003 0x0004

192 (0xC0) 168 (0xA8) 0 (0x00) 1 (0x01)

SUBR (Subnet Mask Register) [R/W] [0x0005 – 0x0008] [0x00]

This register sets up the subnet mask address.

Ex) In case of “255.255.255.0”