• TMK Converter for XT keyboard
• TMK IBMPC Converter
• TMK XT Converter
• Protocol
• 1. IBM XT(two start bits)
• Note for start(0)
• 2. Clones(one start bit)
• Idea on How to discriminate IBM XT and Clones
• References
• IBM XT Technical Referenc March 1986
• Clock and Data Signals
• Data Stream
• Keyboard Data Output
• Industrial Computer Technical Reference
• Explanation of XT keyboard 8048 code
• Comments of AT2XT keyboard converter
• Waveforms
• Two start bits
• IBM PC XT and Lynk 122 Key terminal(LX-122-US)
• Another IBM PC XT
• IBM PC XT - kbdbabel.org
• Zhan XT keyboard
• XT Model F ?
• Unidentified AT/XT keyboard
• One start bit
• Leading Edge DC-2014
• Zenith Z-150 XT(black label)
• DCA IRMAkey/3270
• Microtech made in Brazil
• Monterey
• Unidentified AT/XT Keyboard
• XT Keyboard Interface
• Host side schematics
• Keyboard side schemaitcs
• Connector
• Pull up resistors
• Keyboard Hard Reset
• Type-1 vs Type-2
• Clones
• Chip datasheets
• 8048
• LS175 D Flip-Flop
• 74LS74 Positive-edge D Flip-Flop
• 74LS322 8-bit Shift Register
• SN75477 PERIPHERAL DRIVERS
• PC XT BIOS code
• 8255 Port p1-26
• 8088 IRQ1(interrupt 09h)
• Keyboard soft reset
• PORT_B, KB_CTL(61h)
• PB2 data line control
• Scan Code Special Handling
• System Reset
• Break
• Pause
• Print Screen
• Resource
• PC/XT Technical Reference:
• BIOS
• Micro 8088
• Scan Code Set 1
• XT keyboards
• IBM PC XT
• Zenith Z-150 XT(black label):
• Leading edge DC-2014:
• IBM Model F XT keyboard
• waveform
• Pravetz 16
• Siemens F500
• AT/XT Auto Switching keyboards
• AT/XT Switchable keyboards
• XT Converters
• AT2XT keyboard converter for PIC
• Version 0.94 of 2011
• Extended version RT 0.1d of 2015
• AT2XT written in Rust for MSP430
• TMK Implementation
• TMK IBMPC converter
• TMK XT converter
• Implementation Concerns on AVR
• USB SOF interrupt
• INTERRUPT_CONTROL_ENDPOINT of LUFA
• ISR prologue
• Reference code(ATMega32u4)
• XT 286(5162)