System RAM

The System RAM unit is the only 16-bit RAM available in the Intellivision, and it is mapped into the Intellivision memory map from $0200-$035F. Note that for EXEC-based programs, all of the System RAM is used by the STIC and the Executive ROM and is unavailable for general use by the program. Programs that do not rely on the EXEC may use large portions of System RAM for their own purposes.

The System RAM has the additional responsibility of bridging between the STIC's private graphics bus and the CPU's main memory bus.

$0200-$02EF	BACKground TABle (BACKTAB)
$02F0-$02F0	EXEC: Indicates the currently active cartridge header
$02F1-$0318	CP1610 Stack. (Upper bound actually determined by the game software.)
$0319-$031C	EXEC: Unknown use
$031D-$035C	EXEC: MOB RAM data base
$035D	EXEC: Current hand controller dispatch table pointer
$035E	EXEC: Current random number seed
$035F	EXEC: Something sound related