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Article #232 (376 is last):
From: aj205@cleveland.Freenet.Edu (Kevin Steele)
Subject: 32 Mhz TT?
Date: Sun Jul 15 01:09:30 1990

This document is Press Information (VERBATIM including
capitalization, spacing, and spelling) provided by SOFTWARE
Transcribed using optical character reader for precise conversion
by Z*NET NEWS SERVICE, 7/9/90.  Z*Net assumes no responsibility
for the accuracy of the information itself.

PAGE 1 (in very large letters)





                         The Atari TT030

  -  Compatible with the Atari ST, 1000"s of software titles
     already available
  -  3 New Graphics modes:
     320 x 480 with 256 colours from a palette of 4096
     640 x 480 with 16 colours from a palette of 4096
     1280 x 960 high resolution monochrome
  -  Stereo 8-bit PCM sound
  -  68030 running at 32 Mhz
  -  68881 Floating Point co-processor
  -  2 Megabytes of RAM, expandable to 26 Mb
  -  SCSI and ASCI with DMA built in
  -  Internal Hard disk
  -  SCC LAN port with DMA
  -  Four serial ports
  -  Parallel port
  -  MIDI ports
  -  Detachable keyboard
  -  Internal A24/D16 VME card slot
  -  Real time clock with non-volatile RAM
  -  ROM cartridge slot
  -  External floppy connector


                 Comparison of standard features

                    Amiga 3000     Mac IIcx       Atari TT030

CPU                 68030          68030          68030
FPU                 Yes            Yes            Yes
Clock speed         16 Mhz         -              32 Mhz
RAM                 2 to 17        1 to 32        2 to 26
Burst Mode          Yes            No             Yes
ROM                 512K           256K           512K
  Max resolution    1280 x 480     Optional       1280 x 960
                    Interlaced                    Non-interlaced
  Max colours       32 Colours                    256 Colours
                    from 4096                     from 4096
  Max video RAM     1 Mb                          8 Mb
Sound               Stereo         Stereo         Stereo
Expansion           Proprietary    NuBus          VME
Hard disk           DMA            Non-DMA        DMA
Floppy disk         Proprietary    Proprietary    PC compatible
Network             No             Yes            Yes, DMA
Serial              1 x RS232      2 x RS232      4 x RS232
Parallel            Yes            No             Yes
MIDI                No             No             Yes
ROM Cartridge       No             No             Yes


                    The Atari TT030 Hardware

The TT030 (Thirty-two/Thirty-two bit) is the first member of a
new series of Atari computers designed as enhanced versions of
the existing ST and MEGA family.  The TT series maintains
compatibility with the ST/MEGA architecture, but uses the
Motorola 68030 microprocessor and provides enhanced graphics and
sound.  The TT030 is also designed to run Unix (Unix is a
trademark of AT&T).

The TT030 is based on the high performance 32-bit Motorola MC68030
processor running at a 32 Mhz clock frequency. The 68030 includes
on-chip data and instruction caches which can be filled from some
regions of memory in bursts of double word fetches

The architecture also includes the industry standard VME bus to
facilitate expansion. The system supports the latest revision
(C.1) of the VME bus specification. The TT030 can accommodate one
single-Eurocard (3U) A24/D 16 or A 16/D 16 slave-only VME board,

The TT series is expected to function in an environment with
other TTs and even machines from different manufacturers. To
facilitate connectivity, each system has an on-board port for a
moderate speed LAN. If the LAN is not being used, the port can be
programmed to be a standard RS232C port. Through an optional VME
bus-based or SCSI-based Ethernet controller, the TT also has the
capability of connecting to heterogeneous Ethernet networks. The
TT030 has three additional standard RS-232C serial ports for
connection to modems, display terminals, or digitizing tablets.
The hardware features of the TT030 include:

  -  Motorola MC68030 at 32MHz
  -  Motorola MC68881 Floating Point Coprocessor (the coprocessor
     is socketed, so that it can be optionally upgraded to a
  -  ST RAM: 2 Mbyte of ST-compatible dual-purpose (video/system)
     RAM, expandable by an add-on daughterboard containing a
     further 2 or 8 Mbyte of dual-purpose memory. This 64-bit
     wide memory appears 32 bits wide to the processor and
     SCSI/SCC DMA engines TT video logic has access to this
     memory on a time critical basis. The remaining system logic,
     including the processor, can access this memory in the
     alternate 250 nS TIME SLICES.
  -  TT BURST MODE RAM: provision for a daughter-board that will
     accept either 4 x 1 Mbyte or 4 x 4 Mbyte SIMMS, allowing
     another 4 Mb or 16 Mb expansion. This RAM can only be
     accessed by the processor, the SCSI DMA Engine, and the SCC
     Network DMA Engine. The 68030 can take advantage of
     burst-mode for filling its internal cache from this RAM.
  -  4 socketed 1 Mbit ROMS, providing 512 Kbyte of ROM space.


  -  Internal video modes that are a superset of those in the
     Atari ST/STe series using an analog RGB (VGA-like) colour
          pixels    rows      colors    palette
          320       200       16        4096 (STe compatible)
          640       200       4         4096 (STe compatible)
          640       400       2         4096 (STe superset)
          320       480       256       4096
          640       480       16        4096
     using a high resolution ECL monochrome monitor
          1280      960       black on white
  -  parallel I/O port, generally used for Parallel printer
  -  internal speaker, which can be disabled under software
  -  2 low-speed asynchronous serial I/O ports (one from each of
     two 68901 MFPS) at programmable baud rates up to 19.2 baud
  -  2 high-speed asynchronous/SDLC Serial I/O ports (from a
     Zilog 8530 SCC). One part can be programmed to be a Local
     Talk compatible LAN interface with a proprietary single
     channel DMA controller. The other port is intended for use
     as an asynchronous AS-232 port with programmable split baud
  -  battery backed-up real time clock (RTC) with 50 bytes of
     non-volatile RAM
  -  ST/MEGA compatible intelligent keyboard, with mouse and
     joystick ports including support for a 3 button mouse
  -  Atari ACSI DMA channel (for Atari Hard Disk, Laser Printer,
     CD-ROM, etc)
  -  Floppy disk controller and interface sharing the ACSI DMA
  -  Musical Instrument Digital Interface (MIDI) STe compatible
     DMA sound engine with programmable volume and tone control
     which can play back stereo 8-bit samples at rates up to 50
  -  Atari ST compatible cartridge port (128 Kbyte Storage)
  -  SCSI interface using 23-pin connector implemented with the
     NCR 5380 SCSI controller chip and a proprietary DMA
  -  Industry standard VME bus for expansion

When comparing the TT030 with the competition, four important
features stand out:

  -  flicker-free, high resolution colour graphics built-in as
  -  high bus bandwidth, independent of video resolution
  -  excellent connectivity including four RS232 ports, MIDI,
     LAN, ASCI & SCSI.
  -  high speed burst-mode RAM, 32 Mhz CPU clock speed.

End of Press Release

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