From: Subject: SWTPC 6800/2 Computer System Date: Thu, 5 Aug 2004 17:38:39 -0400 MIME-Version: 1.0 Content-Type: multipart/related; boundary="----=_NextPart_000_0000_01C47B13.0B5A5140"; type="text/html" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C47B13.0B5A5140 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.swtpc.com/mholley/6800_2/6800_2_Index.htm SWTPC 6800/2 Computer System

6800/2 IS HERE

Photo (21K=20 JPG)

From an Ad in Byte Magazine, February 1978

 6800/2 Kit  $439.00 ppd Cont. U.S.
  6800/2 Assembled  $495.00 ppd Cont. = U.S.

The 6800/2 uses our new A2 processor board with socket space for 8K = bytes of=20 ROM/PROM. This makes it possible to use the 6800 in applications where = ROM=20 programs are useful without purchasing an expensive PROM accessory = board. The A2=20 board has a DIP switch selector that allows you to replace any 8K block = of=20 memory above the RAM memory that extends to 32K with memory external to = the=20 processor board itself. This lets you develop special programs that will = later=20 be put in PROM in a normal RAM memory card where it can be modified and=20 debugged. The A2 board has a crystal controlled baud rate oscillator and = a=20 separate clock driver oscillator whose frequency may be changed with a=20 programming resistor. The A2 processor board gives you the maximum = possible=20 flexibility in setting up a computer system.

SWTBUG Monitor

The 6800/2 is supplied with our new SWTBUG monitor. This new monitor = is=20 software compatible with the earlier Mikbug monitor used in the 6800. = All major=20 subroutine entry points are identical. SWTBUG features a resident MF-68=20 Minifloppy disk boot, single level breakpoints, vectored software = interrupt,=20 generation of punch end of tape formatting and automatic interface = configuring=20 for either the MP-C control interface or MP-S serial interface.

ACIA Type Interface

The 6800/2 uses our MP-S serial interface. This RS-232 and 20 Ma. TTY = compatible interface may be configured to operate serially at the = following baud=20 rates: 110, 150, 300, 600, 1200, 2400, 4800 and 9600. Complete interrupt = control=20 is available through the user's software.

4K Static MEMORY

The 6800/2 comes with 4K of static RAM memory on our MP-8M board. The = memory=20 may be expanded to 8K by the addition of eight more memory chips. No = additional=20 parts are needed. Full buffering of all data, address and control lines = is a=20 standard feature. Memory expansion to 32K of continuous RAM memory and = up to a=20 48K mixture of ROM/RAM is possible with this system.

ACCESSORY BOARDS

Do you have a special job? Our accessory boards make it possible to = use the=20 6800/2 for almost any type of computer application. We have our MP-T = interrupt=20 timer with software interrupt selectable output. Our MP-N calculator = interface=20 that allows you to do arithmetic functions in hardware. Our MP-R EPROM=20 programmer that programs and verifies EPROMs right in the machine - and = more=20 coming.

SWTBUG is a registered trademark of Southwest Tech. Prod
Mikbug = is a=20 registered trademark of Motorola, Inc.

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