Philips VG8020 Manual De Instalación página 51

Appendix A
TECHNICAL SPECIFICATION
1. THE CHIP-SET
CPU Central Processing Unit
ZBOA, 3.5 MHz.
VDP Video Display Processor TI TMS-9129 or similar chip.
PSG Programmable Sound Generator
YAMAHA S-3527 or similar chip.
PPI Programmable Peripheral Interface YAMAHA S-3527 or similar chip.
2. MEMORY BUILD-UP
HFFFF
HCOOO
H8000
H4000
HO OOO
32K
ROM
·BASIC
Inter-
pretor
SLOTO
SYSTEM
MEMORY
SLOT1
CARTRIDGE
CONNECTOR1
SLOT2
CARTRIDGE
CONNECTOR2
Your MSX computer also has a separate 16K video RAM.
64K
RAM
SLOT3
SYSTEM
MEMORY
Working with MSX-BASIC, you have the memory adresses &H8000 to &HFFFF at your
disposal as user memory. Parts of the memory space however are taken up by the
MSX-BASIC interpreter. When starting up your configuration you can see on your monitor
screen how large the available free memory space is.
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