Editing Intellivision (section)

==Hardware specifications==
===Master Component===
''Intellivision, Super Video Arcade, Tandyvision One, Intellivision II, INTV System III, Super Pro System''
*[[General Instrument CP1600|General Instrument CP1610]] 16-bit microprocessor [[central processing unit|CPU]]
**1 microsecond cycle time, 2&nbsp;MHz 2-phase clock<ref>{{cite web|url=https://console5.com/techwiki/images/c/ce/CP1610.pdf |title=16-Bit Microprocessor |access-date=2019-07-23 |archive-url=https://web.archive.org/web/20121018085633/https://console5.com/techwiki/images/c/ce/CP1610.pdf |archive-date=2012-10-18 |url-status=live }}</ref> (1.117 [[μs]] and 1.7897725&nbsp;MHz [[NTSC]])
**16-bit multiplexed data/address bus
*1456&nbsp;[[byte]]s of [[random-access memory|RAM]] (SRAM):
**240 × 8-bit [[scratchpad memory]]
**352 × 16-bit (704 bytes) system memory, General Instrument RA-3-9600 dual-ported, bridges [[CPU]] and [[Standard Television Interface Chip|STIC]] buses, 240 words used for graphics
**512 × 8-bit graphics RAM
*7168 bytes of [[read-only memory|ROM]]:
**4096 × 10-bit (5120 bytes) executive ROM (4352 x 10-bit Intellivision II)
**2048 × 8-bit graphics ROM (344 bytes used by Exec program)
*[[Standard Television Interface Chip]] (STIC): General Instrument AY-3-8900/AY-3-8900-1<ref>{{cite web|url=https://console5.com/techwiki/images/a/ad/AY-3-8900.pdf |title=Standard Television Interface Chip |access-date=2019-07-23 |archive-url=https://web.archive.org/web/20170312064507/https://console5.com/techwiki/images/a/ad/AY-3-8900.pdf |archive-date=2017-03-12 |url-status=live }}</ref><ref>{{cite web |url=http://spatula-city.org/~im14u2c/intv/jzintv-1.0-beta3/doc/programming/stic.txt |title=STANDARD TELEVISION INTERFACE CIRCUIT (STIC) |access-date=2019-07-23 |archive-date=2019-07-26 |archive-url=https://web.archive.org/web/20190726100924/http://spatula-city.org/~im14u2c/intv/jzintv-1.0-beta3/doc/programming/stic.txt |url-status=live }}</ref><ref>{{cite web|url=http://wiki.intellivision.us/index.php?title=STIC|title=STIC – Intellivision Wiki|website=wiki.intellivision.us|access-date=2017-09-10|archive-date=2018-07-09|archive-url=https://web.archive.org/web/20180709215702/http://wiki.intellivision.us/index.php?title=STIC|url-status=live}}</ref>
**operates at 4&nbsp;MHz or 3.579545&nbsp;MHz (NTSC)
**14-bit multiplexed data/address bus shared with CPU 
**20×12 [[Tile-based video game|tiled playfield]], tiles are 8×8 [[pixel]]s for a resolution of 159×96 (right pixel not displayed)
***16 color palette, two colors per tile
***''Foreground/Background'' mode; all 16 colors available for background and colors 1–8 available for foreground per tile; grom cards limited to the first 64
***''Color Stack'' mode; all 16 colors available for foreground per tile; background colour from a four colour rotating stack of any four colors, all 277 grom and gram cards available
***''Colored Squares'' mode<ref>{{cite web|url=http://www.intellivisionlives.com/bluesky/hardware/intelli_tech.html#stic|archive-url=https://web.archive.org/web/20170630220531/http://www.intellivisionlives.com/bluesky/hardware/intelli_tech.html#stic|url-status=usurped|archive-date=2017-06-30|title=Intellivision Classic Video Game System / Intellivision Master Component|website=intellivisiongames.com}}</ref> allows each tile to have four different colored 4×4 blocks (e.g. ''[[Snafu (video game)|Snafu]]''); first seven colors available for foreground blocks; background colour from the color stack
**8 [[sprite (computer graphics)|sprite]]s (all visible on the same scanline). Hardware supports the following features per-sprite:
***coordinate addressable off screen for smooth edge entries and exits
***Size selection: 8×16 or 8 pixels wide by 8 half-pixels high
***Stretching: horizontal (1× or 2×) and vertical (1×, 2×, 4× or 8×)
***Mirroring: horizontal and vertical
***Collision detection: sprite to sprite, sprite to background, and sprite to screen border
***Priority: selects whether sprite appears in front of or behind background.
** fine horizontal and vertical pixel scrolling
** all STIC attributes and GRAM re-programmable at [[Vertical blanking interval|VBLANK]], 60 times a second
*Three-channel sound, with one noise generator, [[sound chip|audio chip]]: [[General Instrument AY-3-8910|General Instrument AY-3-8914]] ([[General Instrument AY-3-8910|AY-3-8914A/AY-3-8916]] Intellivision II)
*Connections:
**44-pin cartridge/expansion port
***64K addressable (approx 50K available), more with memory [[bank switching]]
***typical cartridges: 4K, 6K, 8K, 12K, 16K, 24K (10-bit [[Read-only memory|ROMs]])
**2 x 9-pin controller connectors
***''inline pin connectors internally accessible on original Intellivision and INTV systems''
***''[[DE-9]] connectors externally accessible on Super Video Arcade and Intellivision II''
**[[RF modulator|RF]]/[[RCA jack|RCA]] audio/video connector; RGB/[[SCART|scart/péritel]] in France
**Intellivision II only: external power adapter 16.7Vac 1amp or 16.2Vac 955[[milliamp|mA]]

===Game controller===
[[File:Intellivision-Controller.jpg|thumb|alt=dark brown gaming pad, with a circular controller and a number pad|The original Intellivision [[gamepad|controller]] with no overlay inserted]]
The Intellivision controller features:

*12-button [[numeric keypad]] (0–9, ''clear'', and ''enter'')
*Four side-located action buttons (two for left handed players, two for right handed players)
**''top two side buttons are electronically the same, giving three distinct buttons''
*A directional pad, capable of detecting 16 directions of movement
*Plastic overlays that slide into place as an extra layer on the keypad to show game-specific key functions

The directional pad was called a "control disc" and marketed as having the "functionality of both a [[joystick]] and a [[Paddle (game controller)|paddle]]".<ref>{{cite magazine|title=Get a Grip!!!: Joysticks Past, Present & Future |magazine=[[Next Generation (magazine)|Next Generation]]|issue=17|publisher=[[Imagine Media]]|date=May 1996|page=38}}</ref> The controller was ranked the fourth worst video game controller by [[IGN]] editor Craig Harris.<ref>{{cite web |title=Top 10 Tuesday: Worst Game Controllers |url=https://www.ign.com/articles/2006/02/22/top-10-tuesday-worst-game-controllers |website=[[IGN]] |access-date=September 25, 2013 |date=February 21, 2006 |archive-date=September 29, 2013 |archive-url=https://web.archive.org/web/20130929155229/http://www.ign.com/articles/2006/02/22/top-10-tuesday-worst-game-controllers |url-status=live }}</ref>

===Peripherals===
*[[#Keyboard Component|Keyboard Component]] ''(limited availability)''
**[[MOS Technology 6502|6502]] CPU, 16K × 10-bit DRAM, 40×24 text overlay, tape-drive, microphone input, two expansion ports
*[[PlayCable]] ''(availability through cable TV provider 1981–1983)''
**''[[Mattel]] and [[General Instrument]] joint venture, manufactured by [[Jerrold Electronics|GI/Jerrold]]''
**8K x 10bit RAM<ref>{{cite web |url=http://intvrevolution-forum.forumotion.com/t617-playcable-missing-chip |title=Playcable missing chip? |publisher=Intvrevolution-forum.forumotion.com |access-date=2019-07-23 |archive-date=2018-10-24 |archive-url=https://web.archive.org/web/20181024192408/http://intvrevolution-forum.forumotion.com/t617-playcable-missing-chip |url-status=live }}</ref>
*[[Intellivoice]] Voice Synthesis Module
**[[General Instrument SP0256]]-012
*[[Entertainment Computer System|Computer Module]] ''(includes the following)''
**Computer Adapter
***2K x 8-bit SRAM, 12K ECS Exec/BASIC ROM, memory expansion port (discontinued)
***[[General Instrument AY-3-8910|AY-3-8917]] sound generator
***two DE-9 hand controller connectors
***audio tape recorder data storage interface, two 3.5mm mono jacks and one 2.5mm jack for optional tape control
***[[auxiliary jack]] for a serial printer connection ([[Mattel Aquarius]] compatible), 3.5mm stereo jack that is [[RS-232C]] compatible, where tip is data transmit, ring is DSR/[[Data Carrier Detect|DCD]], sleeve is ground, 1200 [[baud]], 8 data bits, 2 stop bits, and no parity<ref>{{cite web|url=https://archive.kontek.net/aqemu.classicgaming.gamespy.com/aqfaq2.htm|title=Mattel Aquarius FAQ|publisher=Horvat/Parrish, May 6, 2001 (accessed on ArchiveKontek.net)|accessdate=October 13, 2022|archive-date=August 15, 2022|archive-url=https://web.archive.org/web/20220815014747/https://archive.kontek.net/aqemu.classicgaming.gamespy.com/aqfaq2.htm|url-status=live}}</ref>
***external power adapter 10Vac 1amp
**Computer Keyboard
*[[Entertainment Computer System|Music Synthesizer]] ''(requires Computer Adapter)''
**49 key piano keyboard
*[[Intellivision II|System Changer]]
**[[Atari 2600]] compatible cartridge slot
**two [[DE-9]] Atari 2600 compatible controller connectors
*Videoplexer (from Compro Electronics)
**cartridge switching accessory with eight cartridge slots