Yes, I know :). No any

RayeR писал(-а):
By the logic I mentioned a multiplexer or similar circuit that connect two PS/2 lines to the same pins of PS/2 connector.
Yes, I know:). No any circuit that connect MDAT and MCLK to pins of PS/2 connector.

RayeR писал(-а):
that describes wrong pinout! on page 7
No. Pinout in official datasheet is right:).
Gigabyte orders special version that marking on 3-rd line:
IT8728F
xxxx-xxx
xxxxxxGB

GB - special version for Gigabyte only.
Rule "+31": add 31 to pin number from official datasheet - get pin number for special version.
Example: KDAT in official datasheet have pin number 80. For Gigabyte version - 8+31=111.