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Atari 130XE
 

 

Model	Atari 130XE
Processor	MOS Technology 6502C	1.79MHz (NTSC) 1.77MHz (PAL)
Custom LSI Chips	ANTIC	Microprocessor dedicated to the television display. It retieves the diplay list and display data from RAM using direct memory access (DMA). It processes the higher level instructions in the display list and translates these instructions into a real-time stream of simple instructions to GTIA.
	GTIA	A television interface chip. Converts the digital commands from ANTIC (or the 6502 directly) into the signal that goes to the television. GTIA also adds color values, player-missle graphics, and collision detection.
	POKEY	Digital I/O chip. Handles the serial I/O bus, audio generation, keyboard scan, and random number generation. Also digitizes the resistive paddle inputs and controls maskable interrupt (IRQ) requests from peripherals.
	PIA	(not sure)
	FREDDY	A RAM address multiplexer. It takes the address and clock from the CPU and multiplexes it with the appropriate timings and signals to use DYNAMIC memory. FREDDY also buffers the system clock crystal and divides it down then feeds that to GTIA.
Memory	128K RAM 24K ROM
Operating System	XL OS	(In ROM)
Interfaces	Cartridge Slot	16K address space
	(2) Joystick (serial) Ports	9-pin D-Type
	Atari Serial I/O (SIO)
	Enhanced Cartridge Interface	Provides direct memory access
	RF Interface
Sound	4 channels	3.5 octaves each channel
Keyboard	62 keys	Full stroke (typewriter-style)
Function Keys	Reset, Option, Select, Start, Help
Built-in Software	Self Test
	Basic Rev. C
Announced	1985	Exact date unknown
Released	1985	Exact date unknown

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