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W5300 Datasheet(PDF) 91 Page - WIZnet Co., Ltd |
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W5300 Datasheet(HTML) 91 Page - WIZnet Co., Ltd |
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91 / 128 page  © Copyright 2008-2014 WIZnet Co.,Ltd. All rights reserved. 91 1. Defining internal TX/RX memory size (Refer to MTYPER) 2. Defining TX/RX memory of SOCKETn (Refer to TMSR & RMSR) W5300 internally contains 16 memory blocks of 8Kbyte. The memory blocks are mapped in address space of 128Kbytes in sequence. 128Kbytes memory can be divided into the transmission(TX) and reception(RX) memory. The internal TX and RX memory can be allocated with 8Kbytes unit in the range of 128KBytes. Allocated internal TX/RX memory can be re-allocated to each SOCKET by 1Kbyte unit in the range of 0~64Kbytes. Below is showing that 72Kbytes is allocated to the internal TX memory and 56Kbytes is allocated to the internal RX memory. The internal TX memory is re-allocated to from SOCKET0 to SOCKET7 with the value 4, 16, 1, 20, 0, 7, 12, 12Kbytes in the range of 72Kbytes. RX memory is re-allocated with the value 17, 3, 5, 16, 3, 4, 4, 4Kbytes. Socket 4 can’t transmit data because its allocated memory for TX is 0Kbyte. |
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