1 -------------------------------------------------------------------------------
2 Analog Devices AD1981A: AC'97 data
3 -------------------------------------------------------------------------------
5 This is set of example captures of the AC'97 data on an Analog Devices
6 AD1981A AC'97 2.2 audio codec.
9 https://en.wikipedia.org/wiki/AC%2797
10 https://www.analog.com/en/products/ad1981a.html
16 The logic analyzer used was a Saleae Logic16 (at 50/100 MHz):
23 3 RESET# (only in the 50MHz captures)
25 SDATA_OUT never toggled, so it was omitted.
28 ac97_ad1981a_powerup1*.sr
29 -------------------------
31 The data is the first chunk of traffic that occurs on an random mainboard
32 (which contains the AD1981A) during BIOS power-up.
35 ac97_ad1981a_powerup2*.sr
36 -------------------------
38 Same as above, but this is a snippet of the second chunk of data that occurs
39 a few seconds after the first chunk.