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<DIV>hello!</DIV>
<DIV>the field of [31:0] in the register MIO_TWS_SW_TWSI is data field, in the following function the&nbsp;low-8-bit of the 16-bit&nbsp;address is&nbsp;loaded in the MIO_TWS_SW_TWSI[7:0].&nbsp;WHY?&nbsp;</DIV>
<DIV>int octeon_twsi_set_addr8(uint8_t dev_addr, uint16_t addr)<BR>{</DIV>
<DIV>&nbsp;&nbsp;&nbsp; /* 16 bit internal address ONLY */<BR>&nbsp;&nbsp;&nbsp; uint64_t val;<BR>&nbsp;&nbsp;&nbsp; octeon_write64(CVMX_MIO_TWS_SW_TWSI,0x8000000000000000ull | ( 0x0ull &lt;&lt; 57) | (((uint64_t)dev_addr) &lt;&lt; 40) | (addr &amp; 0xff)); // tell twsii to do the read<BR>&nbsp;&nbsp;&nbsp; while (octeon_read64(CVMX_MIO_TWS_SW_TWSI)&amp;0x8000000000000000ull);<BR>&nbsp;&nbsp;&nbsp; val = octeon_read64(CVMX_MIO_TWS_SW_TWSI);<BR>&nbsp;&nbsp;&nbsp; if (!(val &amp; 0x0100000000000000ull)) {<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return -1;<BR>&nbsp;&nbsp;&nbsp; }</DIV>
<DIV>&nbsp;&nbsp;&nbsp; return(0);<BR>}</DIV>
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