MSX 2
Canon V30
msx_canv30f

Canon V-30 MSX2

The Canon V30F MSX2 is designed with a separate keyboard and computer unit. The machine comes standard with 1 built-in disk drive, but has room for another. This is the last MSX computer that Canon produced.

The keyboard has a nice ergonomical feature that allows the keyboard to have different levels of inclination. The front cartridge slot has an eject button and a front panel hides the Real Time clock batteries. The Canon V30F was produced for the Japanese Market.

This machine, like the other Canon machnies, can be used with the Canon Phography Interface unit DMB, that connects the Canon T90 Single-Lens Reflex camera with the computer. This enabled the user to keep a database of picture frames with information about each frame such as exposure time etc.

The MSX 2 Standard

The MSX2 Standard was introduced as successor to the MSX standard. The biggest improvement on the standard were the video capabilities of the system. Where the MSX-1 was quite capable with 16 colors and hardware sprites, it had some limitations. The graphics mode was pattern based, which meant that pixels were grouped by the 8, and each 8 pixels could only have one foreground and one background color. For games and pictures this meant that there was a color spill effect, colors bleeding over in unwanted areas.

The MSX2 introduced a new Video Display Processor, the V9938. This chip had the capacity to display 256 color simultanously, or have graphics modes with 16 colors out of a 512 color palette. It had true bitmapped graphics, that offered multiple in-memory pages for double buffering or vertical scrolling. The sprite system now supported multi-color sprites, and up to 8 sprites per scan-line. The Video RAM was defined to be at least 64KByte, but most systems came with 128KByte which was the maximum the V9938 supported.

The V9938 made it possible to create some great games. The most famous is the very first version of Konami's excellent game Metal Gear.

Video - The V9938 VDP

The V9938 is a video display processor developed by Yamaha. It is mainly used on MSX2 computers, but also in teh Tatung Einstein 256 and the Geneve 9640 enhanced TI-99/4A clone. Some MSX-1 computers used it with 16kByte of memory to enable a 80 column text display

Specifications:

  • Video RAM: 16-192 KByte
  • Text mdoes: 80x24, 40x24, 32x24 (with sprite capability and multi-color)
  • Graphics: 512x212 (16 colors from 512), 256x212(16 colors from 512) and 256x212 in 256 colors
  • Sprites: 32 sprites, 16 colors (2 per line), 8 sprites per scanline
  • Hardware Accelleration for copy, line, fill and logical operations
  • Interlacing for doubling of resolution
  • Vertical scroll register
  • Clock: 21 MHz
  • Superposition and digitization capabilities
  • Video Output: 15 kHz
  • Support for lightpen and mouse<

Sound - The AY-3-8910 PSG

The AY-3-8910 is a 3-voice Programmable Sound Generator, or PSG. It was designed by General Instruments in 1978 for use with their own 8-bit PIC1650 and their 16-bit CP1610 computers.

The PSG is widely used in many arcade cabinets, pinball machines, and many micro-computers. Here is a list of some of the major brands of computer that used the AY-3-8910:

  • Intellivision
  • Vectrex
  • Amstrad CPC range
  • Oric-1
  • Color Genie
  • Elektor TV Games Computer
  • All MSX-1 and MSX-2 computers
  • ZX Spectrum home computers

General Instrument spun of MicroChip Technology in 1987 and the chip was sold under the MicroChip brand, and licensed to Yamaha as the YM2149F which the Atari ST range of computers use. Functionally the PSG is very similar to the Texas Instruments SN76489.

Variants:

  • AY-3-8910
    Comes with 2 general purpose 8-bit parallel I/O ports, used for Keyboard and Joystick in for instance MSX.
  • AY-3-8912
    Same chip, but in a 28-pin package. Parallel port B is not connected to save cost and space.
  • AY-3-8913
    Same chip, but in a 24-pin package. Both parallel ports are not connected.
  • AY-3-8914
    The AY-3-8914 has the same pinout and is in the same 40-pin package as the AY-3-8910, except the control registers on the chip are shuffled around, and the 'expected input' on the A9 pin may be different. It was used in Mattel's Intellivision console and Aquarius computer.
  • AY-3-8930
    Backwards compatible but BC2 pin is ignored
  • YM2149F
    Yamaha Produced chip, same pin-out as the AY-3-8910, but pin 26 could halve the master clock. Can be used to replace the AY-3-8910 if pin 26 is left disconnected.
  • YM3439-D
    CMOS version of the Y2149 in 40-pin DIP
  • YM3439-F
    CMOS version of the Y2149 in 44-pin QFP
  • YMZ294
    Variant of the YM3249 in an 18-pin package. Parallel ports not connected, and all sound channels mixed on 1 port.
  • T7766A
    Toshiba variant of the AY-3-8910, fully compatible. Used in some MSX models.
  • Winbond WF19054, JFC95101, and File KC89C72: Fully compatible versions of the AY-3-8910 produced for slot machines.

CPU - The Zilog Z80

The Z80 quickly became popular in the personal computer market, with many early personal computers, such as the TRS-80 and Sinclair ZX80, using the Z80 as their central processing unit (CPU). It was also widely used in home computers, such as the MSX range, SORD, and the Amstrad CPC, as well as in many arcade games. Additionally, it was also used in other applications such as industrial control systems, and embedded systems. The Z80 was widely used until the mid-1980s, when it was gradually replaced by newer microprocessors such as the Intel 80286 and the Motorola 68000.

The Z80 microprocessor was developed by Zilog, a company founded by Federico Faggin in 1974. The Z80 was released in July 1976, as a successor to the Intel 8080. It was designed to be fully compatible with the 8080, but also included new features such as an improved instruction set, more powerful interrupts, and a more sophisticated memory management system.

Originally the Z80 was intended for use in embedded systems, just as the 8080 CPU. But the combination of compatibility, superior performance to other CPUs of the era, and the affordability led to a widespread use in arcade video game systems, and later in home computers such as the Osborne 1, TRS-80, ColecoVision, ZX Spectrum, MSX, Sega's Master System and many more. The Z-80 ran the original Pac-Man arcade cabinet. The Z-80 was used even in the Game Gear (1990s), and the TI-81 and succeeding graphic calculators.

The Z-80 remained in production until June of 2024, 48 years after its original release. Zilog replaced the processor with its successor the eZ80, an 8-bit microprocessor that features expanded memory addressing up to 16 megabytes, and running up to 50MHz, comparable to a Z80 clocked at 150MHz.

Technical Details
Released 1984
Country Japan
Brand Casio
Type MSX 2
Name Canon V30
CPU Class Z80
CPU Zilog Z80A @3.58MHz
Memory RAM: 64kB
VRAM: 128kB
Sound Chip General Instruments AY-3-8910 Programmable Sound Generator
Sound 3 wave channels + white noise
Display Chip V9938 VDP Compatible
Display All MSX-1 modes
256x212 16 color
512x212 4 color
512x212 2 color
256x212 256 color
Best Text 80x24
Best Color 256 simultaneous, or 16 out of 512 colors
Graphics 512x424 interlaced
Sprites 16 colors out of 512, 16x16, 8/scanline, 64 total
System OS MSX 2 BIOS / MSX 2 BASIC
Storage Internal Double sided sided 3.5" disk drive, external Tape, ROM cartridges
Original Price ¥138,000
Related Systems 💾
MSX 1
MSX 2
MSX 1
MSX 2
MSX 2+
MSX Turbo-R
External Links 🌐
MSX.ORG - Canon V-30 MSX2
MSX Wikipage on the Canon V-30 MSX2
WikiPedia: The V9938 Video Processor
Wikipedia page about the V9938 Video Display Processor (VDP) used in many computers such as MSX2, Tatung Einstein and more
WikiPedia: General Instrument AY-3-8910
Wikipage on the General Instruments AY-3-8910 PSG
Z80 CPU
Wikipedia page on the very popular Z80 8-bit CPU used in many computers of the 1980's era.