Micro Professor
1 - Basic Stats
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CPU | Z80 | |
Speed | 2.5MHz(1.79MHz) | |
Word length | 8bit | |
ROM | 2k(4k) | |
RAM | 2k | |
Graphic Modes | 0 | |
Text Modes | 6 Digit Display | |
Colours |
1 | |
Date | 1979 |
Micro Professor 1 |
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As far as I am able to discover MPF-I has two variants distinguished only by the board version number, PB820010-9A and higher had an upgraded ROM which provided a larger address space. My variant is the later one as you can see from the PB number on the board pictured opposite. As a later upgrade a 2k EPROM containing a BASIC Intepreter could be fitted in the spare EPROM socket or the ROM could be replaced with a 4k combined Monitor/BASIC Intepreter designated MPF-IB as seen opposite. This kept the EPROM socket free, other than this there was no difference between the upgrades. The upgrades came with a rather cute keboard overlay that showed which BASIC keywords were generated by which key. You could also get a Speech synthesizer board based on Texas Instruments TMS5200/5220 and a EPROM programmer board |
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The full hardware spec is as follows: CPU - Zilog Z-80 with 158 Instructions, 2.5MHz max clock rate, system clock 1.79 MHz ROM - Single +5v EPROM 2k or 4k RAM - Static RAM 2k Memory Expansion - Single +5v EPROM or Static RAM (2k-4k) I/O Port - 1. Programmable I/O port - 24 parallel I/O lines for keyboard scan and LED display control 2. Programmable P10 - 16 parallel I/O lines 3. Programmable CTC - 4 counter timers Display - 6 digit 7 segment red LED Keyboard - 36 keys - 19 Function, 16 hex-decimal keys and 1 user definable key Speaker - 2.25" diameter User Expansion - On the right of the board was a 1.36" x 3.5" wire wrapping area Audio Tape Interface - 165 Baud transfer rate System Clock Rate - 3.58MHz crystal divided by 2 Power consumption - Single 5v supply, consumption 5mA Dimensions - 15.75cm x 22.30cms |
The EPROM Programmer Board The board could be connected to the MPF-I or MPF-P and it came with a 4k monitor programme on EPROM. EPROMS of up to 8k can be programmed, the only difference in use is that when used with the MFP-I read and writes have to be performed twice. |
The MPF-I came with
some impressive manuals
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Micro Professor
1P - Basic Stats
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CPU | Z80 | |
Speed | 2.5Mhz | |
Word length | 8bit | |
ROM | 8k | |
RAM | 4k | |
Graphic Modes | 0 | |
Text Modes | 1 | |
Colours |
1 | |
Date | 1983 |