See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
There exist several chips which translate AT Attachment signals to and from ATA Parallel and Serial transports. When observing behaviour of ATA-ATA bridge chips, pay close attention to IDENTIFY DEVICE words 75, 76, 93, 236-254, 255; for I have observed all of these modified by one bridge or another.
package label/marking ACARD ARC770-A
GL830 (only 128 Pin LQFP version, not 48 not 64 pin versions) can bridge from PATA to SATA (parallel device to serial host).
Bidirectional, extremely common, likely most common ATA-ATA bridge in world.
This acts as PATA host, SATA peripheral (PATA-to-SATA). Product brief is available at product Web page. http://www.jmicron.com/product0206.html
This connects SATA peripheral to PATA host. It acts as SATA host; PATA peripheral device 0 ("master").
JMH330S acts as PATA device 1 ("slave"), otherwise identical to JMH330.
This can be found in Seagate Barracuda 7200.7 ST3120026AS.
package label/marking LSI LOGIC L282368Pb METL◇TN◇ G 0341 WTF41954 KOREA
This can be found in Hitachi Deskstar 7K250 HDS722540VLSA80.
package label/marking 88i8030-TBC1 DG51370.7 0449 B5P Taiwan
package label/marking SiliconImage SᴀᴛᴀLink™ (SATALink) SiI3611CT80 Q23427.321 0316 1.5
Sunplus SATALink SPIF223A
This can be found in Shenzhen Fuzhixing Electronic FZX-5002.
package label/marking Sunplusɪᴛ (SunplusIT) SATALink™ (SATALink) SPIF223A-HL022 MO2T457.1 1053-00600