W5200 datasheet(37/88 Pages) WIZNET

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Sn_RXMEM_SIZE(Socket n RX Memory Size Register) [R/W] [0x401E+0x0n00] [0x02]

It configures the internal RX Memory size of each SOCKET. RX Memory size of each SOCKET is

configurable in the size of 0, 1, 2, 4, 8, and 16 Kbytes. 2Kbytes is assigned when reset.

Sn_RXMEM_SIZESUM(sum of Sn_RXMEM_SIZE) of each SOCKET should be 16KB.

Value

0x00

0x01

0x02

0x04

0x08

0x10

Memory size

0KB

1KB

2KB

4KB

8KB

16KB

Ex1) SOCKET 0 : 8KB, SOCKET 1 : 2KB

0x401E

0x411E

0x08

0x02

Ex2) SOCKET 2 : 1KB, SOCKET 3 : 1KB

0x421E

0x431E

0x01

Ex3) SOCKET 4 : 1KB, SOCKET 5 : 1KB

0x441E

0x451E

0x01

Ex4) SOCKET 6 : 1KB, SOCKET 7 : 1KB

0x461E

0x471E

0x01

Sn_TXMEM_SIZE(Socket n TX Memory size Register) [R/W][0x401F+0x0n00] [0x02]

It configures the internal TX Memory size of each SOCKET. TX Memory size of each SOCKET is

configurable in the size of 0, 1, 2, 4, 8, and 16Kbytes. 2Kbytes is assigned when reset.

Sn_TXMEM_SIZESUM(summation of Sn_TXMEM_SIZE) of each SOCKET should be 16KB.

Ex1) SOCKET 0 : 4KB, SOCKET 1 : 1KB

0x401F

0x411F

0x04

0x01

Ex2) SOCKET 2 : 2KB, SOCKET 3 : 1KB

0x421F

0x431F

0x02

0x01

Ex3) SOCKET 4 : 2KB, SOCKET 5 : 2KB

0x441F

0x451F

0x02

Ex4) SOCKET 6 : 2KB, SOCKET 7 : 2KB

0x461F

0x471F

0x02

W5200 Datasheet(PDF) 37 Page - WIZnet Co., Ltd

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