Back in 1985 i attended a night school class taught by the late dave lang at the community college in wanganui, new zealand. Cdp1802a, cdp1802ac, cdp1802bc rca cdp1802 computing. Mar 06, 2012 the rca cdp1802 cosmac microprocessor is a onechip cmos 8bit registeroriented central processing unit introduced in 1976. Mar 02, 2018 the computer instruction set is a subset of what would become the rca cdp1801 and cdp1802 microprocessor instruction set. Overview the cdp1802 test board is intended to test the working condition of rca cdp1802 cosmac and compatible cpus. This collection contains extensive documentation of rcas consumer and industrial products, such as radios, televisions, microscopes, record and video players, test equipment, and phonograph records. The card contains a cdp1802 cpu, a crystalcootrolled clock, readwrite memory, parallel 110 ports, a serial communications interface, poweron reset, and expansion interface. Microprocessor products cdp1802 cdp1802c types features. Jan 23, 2020 the cdp1802 was the first microprocessor with a register bank.
Nehl solidstate division microprocessor products cdp1802 cdp1802c types features. Highreliability cmos 8bit microprocessor datasheet the cdp1802a3 highreliability lsi cmos 8bit register oriented centralprocessing unit cpu is designed for use as a general purpose computing or control element in a wide range of storedprogram systems or products. Hardware description languages like vhdl and verilog can describe functionality for hardware for implementation into fpga and asic. The 1802 is interesting for a number of reasons, not the least of which is the fact that it uses static cmos circuitry, meaning it has no minimum clock frequency. Files are available under licenses specified on their description page. The processor was developed in new jersey, but the kit itself came out of the rca palm beach division. Another early 8bit microprocessor was the signetics 2650, which enjoyed a brief surge of interest due to its innovative and powerful instruction set architecture. That certainly had information critical to making the plm compiler work. The above routine presumes that the cdp1802 microprocessor is in an initial reset. It has flexible programmed io and programinterrupt modes. The cdp1802a3 includes all of the circuits required for. The computer instruction set is a subset of what would become the rca cdp1801 and cdp1802 microprocessor instruction set. So since i once had some courses on vlsi design and.
User manual for the cdp1802 cosmac microprocessor cosmac microboard computer systems appears to be a flyer of some sort microprocessormemory applications briefs a compendium of the most useful cdp1800 series microprocessormemory application hints that have appeared in recent issues of the rca solid state newsletter. Rca 1802 cdp1802 is an 8bit microprocessor, and it was one of the first, if not the first, cmos processors. In 1976 a team of rca engineers led by jerry herzog released their second microprocessor the cdp1802. To put things into perspective, the ti83 calculator introduced in 1996 operates at 6 mhz and has 32 kb of ram. Cosmac complementary symmetry monolithic array computer 40lsi 8 cmos. The rca cdp1802 cosmac microprocessor is a onechip cmos. Although the 1802 is now more than 30 years old, it continues to prove itself in many industrial and commercial applications. Rca cosmac 1802 and 180x test boards for sale the cpu. Cosmac video interface processor cdp18s711 is a complete computer on a single on the display screen and move them around. Hardware description languages like vhdl and verilog can describe functionality for hardware for. Rca cosmac was the first to implement cmos technology. It looks the same as the vp3301 terminal in the rca development system.
It employs an rca cdp1802 cosmac microprocessor and other solid state devices which are produced by the rca solid state division. The cdp1802 cosmac microprocessor, was introduced and popularized by rca in the 1970s and 1908s. Rca cosmac microboard computer development systems mcds rcas lowcost microboard computer development system mcds cdp18s693 combines. Rca studio ii and studio iii home tv programmer emulator ajavamindrcastudio2. Please support the author and do not share your copy of this book online. It used rcas cmos process called cosmos complementary siliconmedialoxide semiconductor. The cdp1802 family of cmos microprocessors are 8bit register oriented central processing units cpus designed for use as general purpose computing or control elements in a wide range of stored program systems or products. Cdp18s601 rca cosmac microboard computer the rca cosmac microboard computer cdp18s601 is a versatile computer system on a single 4. The home tv programmer was designed by the rca distributor and special products division and is being manu factured at the rca plant in swanna.
I checked back on occasion but no progress seems to have been made. Implementing forth on the rca 1802 a 40yearold resourcestarved processor architecture harold rabbie november 2014. The first production model was the twochip cdp1801r and cdp1801u, which were later combined into the singlechip cdp1802. Mpm202 timesharing manual for the rca cdp1802 cosmac microprocessor mpm203 evaluation kit manual for the rca cdp1802 cosmac microprocessor mpm206 subroutine library for rca cosmac microprocessors mpm208 operator. Another excellent book is the programmers guide to the 1802 by tom swan, which may be purchased in pdf form directly from the author. The board consists of the base components of rca cdp1802 test system. The rca cdpi802 microprocessor is a powerful and efficient single chip 8 bit. Rca also released the cdp1861 video display controller, which integrated with the 1802 to. He often told us there was a version that was radiation hardened and it was being used in satellites and minuteman guided missiles icbms.
Coupled with 2k rom, 512 bytes ram, and a 64 x 32 pixel monochrome graphics chip, the studio ii was underwhelming even back in 1977. Rca studio ii and studio iii home tv programmer emulator ajavamind rca studio2. The system was sold as a singleboard personal computer, with two hexadecimal led displays, 8 toggle switches, and 256 bytes of ram. The cdp1802 family of cmos microprocessors are 8bit register oriented.
But how would a time warp of 37 years from 1976 to 20 affect performance. The 1802 had low power consumption, wide range of operating voltages and military operating temperature range. Rca cdp180x cdp1802 cpu test board users manual 2015sep11 ver. Rca 1802 microcontroller first manufactured in 1976 static cmos technology new at the time very low power 10 mw at 3. This is the first commercial microcomputer from rca to contain the twochip cosmac microprocessor tc 1084 tc 1085 version. The rca vp3301 terminal keyboard unit is itself an rca 1802 product, probably with rca s cdp1869 and cdp1870 video chip set. The cdp1802 microprocessor is very interesting cpu.
All structured data from the file and property namespaces is available under the creative commons cc0 license. From the collection, a scannedin computerrelated document. The cdp1802 types include all of the circuits required for fetching, interpreting, and executing instructions which have. A while back i noticed a photomicrograph of a cdp1802 chip and it appeared that the goal was to produce a simulation like they had done for the 6502. Rca cdp1802 microprocessor 91 instructions 2048byte ram builtin hex keyboard modern reliable touchpad type graphic video display interface standard video output 100bytepersecond au dio cassette interface regulated power supply wallpack type crystal clock sound circuits for signal tones and games 512byte rom operating. So most of the time are spent on monitor program coding. Rca cdp1802 microprocessor, running at a scorching 1. Manual, the user should refer to the following publications. The chip can use any combination of standard ram and rom devices and can address up to 65,536 65 k bytes of memory. The 1802 actually, a specialized version of the architecture was the first cpu vs processors made from discrete components to enter space if its a space probe from the 80s, it probably had an 1802 onboard. The heart of the elf microcomputer is the new rca cdp1802. It was one of the first cmos designs, and continues to be made to this day by intersil.
The 1802 represented the majority of cosmac production, and today the entire line is known simply as the rca 1802. The rca cdp1802 aka rca cosmac is an 8bit low power microprocessor introduced by rca around mid 1970s. We built a trainer which dave designed around the rca cosmac cdp1802 microprocessor. A seminal microprocessor in the world of spaceflight was rcas rca 1802 aka cdp1802, rca cosmac introduced in 1976, which was used on board the galileo probe to jupiter launched 1989, arrived 1995. It is historically notable as the first cmos microprocessor. Rca cosmac 1802 and 180x test boards for sale the cpu shack. User manual for the cdp1802 cosmac microprocessor bitsavers. Build the cosmac elf a lowcost experimenters microcomputer. System 00 used an oscilloscope for a video display and supported a resolution of 32 x 32 pixels display memory is 128 bytes.
Cmos microprocessor architecture cdp1802a cmos microboard computer module cdp18s601 cmos microboard memory and tape io module cdp18s652 rombased basic 3 interpreter with full floatingpoint. Probably the first 8bit cmos processor, introduced about 1976. The rca cdp1802 cosmac microprocessor is a onechip cmos 8bit registeroriented central processing unit introduced in 1976. The cdp1802 test board is intended to test the working condition of rca cdp1802 cosmac and compatible cpus. In april 2017, i acquired my own rca vp3303 terminal. The cosmac is an 8bit microprocessor family introduced by rca. Rca s microdos for the cdp1802 when someone at the cosmac elf list noticed a diskette for the plm compiler for the 1802 on ebay, i was surprised that no one mentioned anything about the diskette and manual. The cdp1802 was the first microprocessor with a register bank. A seminal microprocessor in the world of spaceflight was rca s rca 1802 aka cdp1802, rca cosmac introduced in 1976, which was used on board the galileo probe to jupiter launched 1989, arrived 1995.
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