I8042 keyboard controller datasheet

8742 UNIVERSAL PERIPHERAL INTERFACE 8-BIT SLAVE MICROCONTROLLER Y 8742 12 MHz Y Pin Software and Architecturally Compatible with 8741A Y 8-Bit CPU plus ROM RAM IO Timer and Clock in a Single Package Y 2048x8EPROM128x8RAM 8-Bit TimerCounter 18 Programmable IO Pins Y One 8-Bit Status and Two Data Registers for Asynchronous Slave-to-Master Interface 8042 Keyboard Controller (From IBM Technical Reference Manual) Keyboard Commands. Initializing the 8042 Keyboard Controller ... Enable the Keyboard 8042 Keyboard Controller (From IBM Technical Reference Manual) Keyboard Commands. Initializing the 8042 Keyboard Controller ... Enable the Keyboard The PS/2 Controller (often called a “Keyboard controller”) is located on the mainboard. In the early days the controller was a single chip (8042). As of today it is part of the Advanced Integrated Peripheral. 8042 Keyboard Controller (From IBM Technical Reference Manual) Keyboard Commands. Initializing the 8042 Keyboard Controller ... Enable the Keyboard

This will reset the 8042 keyboard controller in I/O , chip is reset and the 8042 keyboard controller in I/O chip drives the Clock and Data lines of both the , keyboard controller stops the keyboard controller from pulsing the CLK lines low until the second byte of , keyboard controller to 360/364 and then sending the D1 command to the keyboard controller at 364. Since , 0x2E. 8042 Keyboard Controller (From IBM Technical Reference Manual) Keyboard Commands. Initializing the 8042 Keyboard Controller ... Enable the Keyboard