W7500x Reference Manual Version1.1.0
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Sn_TMS[7:0]
R/W
R/W
R/W
R/W
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R/W
R/W
R/W
Sn_TXBUF_SIZE configures the TX Buffer size of Socket n. Socket n TX Buffer size can be
configured with 0,1,2,4,8 and 16 Kbytes. If a different size is configured, the data can’t be
normally transmitted to a peer.
Although Socket n TX Buffer size is initially configured to 2Kbytes, user can be re-configure its
size using Sn_TXBUF_SIZE. The total sum of Sn_TXBUF_SIZE cannot be exceed 16Kbytes. When
exceeded, the data transmission error is occurred.
When all Sn_TXBUF_SIZE have been configured, Socket n TX Buffer is allocated with the
configured size in 16KB TX Buffer and is assigned sequentially from Socket 0 to Socket 7.
Socket n TX Buffer can be accessible with 16bits Offset Address ranged from 0x0000 to 0xFFFF
regardless of the configured size. (Refer to Sn_TX_WR & Sn_TX_RD).
Value (dec)
0
1
2
4
8
16
Buffer size
0KB
1KB
2KB
4KB
8KB
16KB
Ex) Socket 0 TX Buffer Size = 4KB
0x4600_0200
0x04
Sn_TX_FSR (Socket n TX Free Size Register)
Address Offset : 0x0204
Reset value : 0x0000_0800
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Sn_TX_FSR indicates the free size of Socket n TX Buffer. It is initialized to the configured size
by Sn_TX_SIZE. Data bigger than Sn_TX_SIZE should not be saved in the Socket n TX Buffer
Содержание W7500
Страница 28: ...W7500x Reference Manual Version1 1 0 28 399 Memory map Figure 2 W7500x memory map ...
Страница 324: ...W7500x Reference Manual Version1 1 0 324 399 Figure 46 UART character frame ...
Страница 391: ...W7500x Reference Manual Version1 1 0 391 399 1 SSP1 must not drive the SSPTXD output in slave mode ...