NY8A050D provides instruction CALL, GOTOA, CALLA to address 256 location of program space. NY8A050D provides instruction GOTO to address 512 location of program space. NY8A050D also provides instructions LCALL and LGOTO to address any location of program space.
When a call or interrupt is happening, next ROM address is written to top of the stack, when RET, RETIA or RETIE instruction is executed, the top of stack data is read and load to PC.
NY8A050D program ROM address 0x1FE~0x1FF are reserved space, if user tries to write code in these addresses will get unexpected false functions.
NY8A050D program ROM address 0x00E~0x00F are preset rolling code can be released and used as normal program space.![]()
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