GMS30004 Datasheet, PDF (115/158 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

é Appendix B Magic- a
é Appendix B Magic- a
Software Spec Sheet
• Product
• Type
• Purpose
• Function
• Features
4 bit 1 chip microcomputer
é Magic- a
Infrared remote control encoder
Ø 8 4 key matrix scan
• Program memory (On-chip ROM) : 512 bytes
Ø • Data memory (On-chip RAM) : 32 4 bits
• 43 types of instruction sets
• 3 levels of subroutine nesting
• 1 bit output port for a large current (Output signal)
• Operating frequency : 300KHz to 1MHz
¶ • Instruction cycle : 13.1868 (fosc=455KHz)
• CMOS process (Single 3V power supply)
• Stand-by function (Through internal instruction)
• Released stand-by mode by key input (Masked option)
• Built in capacitor for ceramic oscillation circuit (Masked option)
• Built in a watch dog timer (WDT)
• 3 kind of double action key
B-1