Technical Specifications
- CPU: Atari SALLY 6502 ("6502C")
- Speed: 1.79 MHz, drops to 1.19 MHz when the TIA Television Interface Adaptor or RIOT (6532 RAM-I/O-Timer) chips are accessed
- (note: Unlike a standard 6502, SALLY can be halted to allow other devices to control the bus)
- RAM: 4 KB (2 6116 2Kx8 RAM ICs)
- ROM: built in 4 KB BIOS ROM, 48 KB Cartridge ROM space without bankswitching
- Graphics: MARIA custom graphics controller
- 160×240 (160×288 PAL) resolution or 320×240/288 resolution
- 25 color palette out of 256 colors (16 hues * 16 luma), different graphics modes restricted the number of usable colors and the number of colors per sprite
- Direct Memory Access (DMA)
- Graphics clock: 7.16 MHz
- I/O: Joystick and console switch IO handled byte 6532 RIOT and TIA
- Ports: 2 joystick ports, 1 cartridge port, 1 expansion connector, power in, RF output
- Sound: TIA video and sound chip, same as the 2600. Only the sound is used in 7800 games. Both video and sound are used in 2600 games.
- Optional POKEY sound chip on cartridge for improved sounds.
Read more about this topic: Atari 7800
Famous quotes containing the word technical:
“When you see something that is technically sweet, you go ahead and do it and you argue about what to do about it only after you have had your technical success. That is the way it was with the atomic bomb.”
—J. Robert Oppenheimer (1904–1967)