GMS84512 Datasheet, PDF (20/123 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTER

GMS 84512 / 84524
2.2 MEMORY SPACE
The memory space of GMS84512/84524 is 64K byte, it is equipped with RAM area, OSD RAM
area, FONT ROM area and PROGRAM ROM area.
2.2.1.
RAM area
0-PAGE ( 0000_H ~ 0-0FF _H )
RAM 192 Bytes ( 0000_H ~ 00BF _H ) and peripheral function register( 00C0_H ~ 00FF _H )
1-PAGE ( 0100 _H ~ 013F _H )
RAM 64 Bytes ( 0100_H ~ 013F _H ) and STACK area
2-PAGE ( 0200 _H ~ 02D5 _H )
OSD RAM 182 Bytes ( 0200_H ~ 02D5 _H )
2.2.2. FONT ROM area ( 2000_H ~ 3FFF_H )
128 character OSD FONT
2.2.3. PROGRAM ROM area
Approximately ROM memory is 12 K bytes and it is domain of User Program.
The highest page(FF00_H ~ FFFF_H ) is called U- Page and it is utilized domain as following.
PCALL area ( FF00 _H ~ FFBF_H )
Domain of jumping at PCALL instruction
TCALL Vector area ( FFC0 _H ~ FFDF_H )
Storage domain of vector address at TCALL instruction.
Interrupt Vector area ( FFE0 _H ~ FFFF_H )
Storage domin of interrupt vector address,inclusive RESET
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