search for: 0xcf9h

...controller. A reset generated by a keyboard controller is not recommended as it?s not sure if future platforms will support this (=> legacy free design). From the complexity point of view, it makes no difference which method to use. The reset via PCH register is just a write to IO space register 0xCF9h. We recommend to perform a full reset via this register. In order to do this, a value of 0x0eh needs to be written into this location. I?m not the assembler guru but the following code should do the job: Mov DX,0cf9h ; load port address Mov al, 0e ; load reset value into al register Out al,dx ;exec...

...r. A reset generated by a keyboard controller is not recommended as it's not sure if future platforms will support this (=> legacy free design). From the complexity point of view, it makes no difference which method to use. The reset via PCH register is just a write to IO space register 0xCF9h. We recommend to perform a full reset via this register. In order to do this, a value of 0x0eh needs to be written into this location. I'm not the assembler guru but the following code should do the job: Mov DX,0cf9h ; load port address Mov al, 0e ; load reset value into al register Out al,dx...