WIZ810Sio User Manual (WIZnet Co.,Ltd.)
8
< Control, Address and DATA Sequence Diagram >
3.2.
Read processing
The READ processing is entered by driving SCSn low, followed by the Address,
the OP code, the Data Length and the Data byte on MOSI. The OP code (OP) is
defined type of the READ OP and WIRTE OP. On OP = 0x0F, the read operation is
selected. On OP = 0xF0, the write operation is selected.
In W5100S SPI mode, the Byte READ processing and the burst READ processing
are provided. The Byte READ processing takes 3 instructions which is consist of
the 8-bit OP code(0x0F),16-bit Address and 8-bit Data. Otherwise, The Burst
READ processing only takes the Data instruction after the setting of the burst
read processing. The MISO pin should be selected by driving MISO low after the
falling edge of the SCSn.
Summary of Contents for WIZ810Sio
Page 12: ...WIZ810Sio User Manual WIZnet Co Ltd 12 4 Timing diagram 4 1 Reset Timing...
Page 13: ...WIZ810Sio User Manual WIZnet Co Ltd 13 4 2 SPI Access Read Timing 4 3 SPI Access Write Timing...
Page 14: ...WIZ810Sio User Manual WIZnet Co Ltd 14 5 Dimensions...
Page 15: ...WIZ810Sio User Manual WIZnet Co Ltd 6 15 6 Reference Schematics...