| Option Category | # # CORE COMM OPTIONS # |
| Description | This option is used by MAME's web interface to sync the communication port with the vertical screen refresh rate. |
| Full Command | -comm_framesync <boolean> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64.exe pacman -comm_remoteport 15000 -comm_framesync 1 |
| mame.ini Command | comm_framesync |
| Command Default | 0 |
| Argument Format | <boolean> |