2 internally located in processor (WP, ST) 16 × 16-bit workspace located in external RAM
The TMS9900 was one of the first commercially available, single-chip 16-bit microprocessors.[a] Introduced in June 1976, it implemented Texas Instruments' TI-990 minicomputer architecture in a single-chip format, and was initially used for low-end models of that lineup.
Its 64-pin DIP format made it more expensive to implement in smaller machines than the more common 40-pin format, and it saw relatively few design wins outside TI's own use. Among those uses was their TI-99/4 and TI-99/4A home computers, which ultimately sold about 2.8 million units.
Microcomputer-on-chip implementations of the 9900 in 40-pin packages included the TMS9940, TMS9980/81, TMS9995. The TMS99105/10 was the last iteration of the 9900 in 1981 and incorporated features of TI's 990/10 minicomputer.[1]
By the mid-1980s the microcomputer field was moving to 16-bit systems like the Intel 8088 and newer 16/32-bit designs like the Motorola 68000. With no obvious future for the chip, TI turned its attention to special-purpose processors like the Texas Instruments TMS320, introduced in 1983.
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The TMS9900 was one of the first commercially available, single-chip 16-bit microprocessors. Introduced in June 1976, it implemented Texas Instruments'...
project. Several CPUs were considered, including the Texas Instruments TMS9900, Motorola 68000 and Intel 8088. The 68000 was considered the best choice...
even have prior exposure to Intel microprocessors, himself having been a TMS9900 programmer beforehand. As late as the early 1990s, IBM was winning millions...
microprocessors such as the National Semiconductor IMP-16, Texas Instruments TMS9900, and the Western Digital MCP-1600 chipset used in the DEC LSI-11. Four...
example, the Data General Nova minicomputer, and the Texas Instruments TMS9900 and National Semiconductor IMP-16 microcomputers used 16 bit words, and...
microprocessors, of differing architectures—including x86, m68k, Z80, and TMS9900—running simultaneously. Omnidata was founded in December 1978 in Westlake...
but not identical, to the TI-99/4A, and uses a similar Texas Instruments TMS9900 16-bit CPU. The computer was launched in Japan in 1982, and in the UK and...
separate engineer—one with experience programming the Texas Instruments TMS9900, not the Intel 8088 or 8086—who had not been exposed to IBM BIOS source...
single-chip PDP-8, DEC T-11 PDP-11, microNOVA and Fairchild 9440 Nova, and TMS9900 TI-990. By the early 1980s, the 16-bit market had all but disappeared as...
scratchpad memory on the 16-bit bus containing the processor registers of the TMS9900 Cyrix 6x86 is the only x86-compatible desktop processor to incorporate...
(equivalent to the CPU's official NOP instruction); this method is used by the TMS9900 and 65C02 processors, among others. Alternatively, unknown instructions...
using exploits. The most common assembly and machine languages are for TMS9900, SH-3, Zilog Z80, and various Motorola chips (e.g. a modified 68000) which...
ISBN 978-0-7923-9619-2. "The Inside Story of Texas Instruments' Biggest Blunder: The TMS9900 Microprocessor - IEEE Spectrum". "Wafer fab costs skyrocketing out of control"...
version made [citation needed] USA Texas Instruments TI-99/4, TI-99/4A TMS9900 1979 TV, monitor Cassette, optional floppy disk drive TMS9918 Several models...
millennium CE 9900 BCE, a year in the 10th millennium BC Texas Instruments TMS9900, an early, 1976, 16 bit microprocessor Volvo 9900, a motor coach bus BlackBerry...
Amstrad CPC). One exception was the TI-99/4, announced in 1979 with a 16-bit TMS9900 CPU. The TI was originally to use the 8-bit 9985 processor designed especially...
Texas Instruments released the first fully 16-bit microprocessor, the TMS9900 processor, in June 1976. They used the microprocessor in the TI-99/4 and...
June 2017). "The Inside Story of Texas Instruments' Biggest Blunder: The TMS9900 Microprocessor". Spectrum. IEEE. Retrieved 2 October 2017. Maruska, Herbert...
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