Datasheet for CompactFlash, SmartMedia, Memory Stick, Secure Digital interface.

Hi friends i had a old HP psc 1350 inkjet printer. I had before same or different marks inkjet printers with CompactFlash, SmartMedia, Memory Stick, Secure Digital card readers. All are using of this OKI mark interface ics. What is the orihinal name of this ic or somebody have any idea about this interface ic or datasheet?
Look to photo plssss.
Greetings

It appears to be an ASIC, so probably no datasheet available.

thanks nigel. i search all kind of oki ( new name is lapis semi.) 144 pin tqfp ? nothing about it