http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W86L785TS-S.pdf some flaws i and somebody found out .. Don't worry about the different partnumber in the link, they made a mistake in the document name. You'll see the correct partnumber in the document itself. There are other mistakes too: Page 8 says "The 8-bit temperature data can be obtained by reading the register." without telling you which one (it's CR27). In the tables on page 10,13 and 20 the values for R1 are wrong in the row 85?C/30?C (should be 9.1K instead of 91K) and in the row 85?C/32?C (should be 6.8K instead of 68K). Of course now that I understand the purpose of those resistors I realize that they don't matter for a device driver. Most important is the mistake on page 10 where the sentence reads: "When monitoring CPUT1 (Pin 2) temperature exceeds temperature fault limit (ex: 90 o C) in CR26, or CR27, pin6 TEMP_FAULT# will be asserted.". This should really read: "When monitoring CPUT1 (Pin 2) temperature in CR27 exceeds the temperature fault limit in CR26 (ex: 90?C) pin6 TEMP_FAULT# will be asserted.". On page 13 the document declares CR26 to be reserved, but I checked on my board and it does indeed contain the temperature fault limit value. Another thing to note is that the 7-bit i?c address is 0101110. Normally the lowest bit indicates reading from or writing to the chip. This would make 0x5C the read and 0x5D the write address. However the chip is clearly accessible at the address 0x2E on the A7N8X (same 7-bit address just shifted to the right). hope i can help -- Marius Dr?ger <rentnerschreck at ecraft.org>
