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128 or 256 bytes of on-chip RAM (IRAM) Dual 16-bit address bus; it can access 2 × 2 16 memory locations: 64 KB (65,536 locations) each of ROM (PMEM) and external RAM (XRAM), using two memory buses in a Harvard architecture. On-chip ROM (not included on 803x variants) Four (three full) 8-bit bidirectional input/output ports, bit-addressable
The Small Device C Compiler (SDCC) is a free-software, partially retargetable [1] C compiler for 8-bit microcontrollers. It is distributed under the GNU General Public License. The package also contains an assembler, linker, simulator and debugger. SDCC is a popular open-source C compiler for microcontrollers compatible with Intel 8051/MCS-51 ...
SAB-C515-LN by Infineon is based on the 8051. The Infineon XC800 family is an 8-bit microcontroller family, first introduced in 2005, [1] with a dual cycle optimized 8051 "E-Warp" [2] [3] core. The XC800 family is divided into two categories, the A-Family for Automotive and the I-Family for Industrial and multi-market applications.
MCS-51 8051 family – also incl. 8X31, 8X32, 8X52; X=0, 3, 7 or 9; MCS-151 High-performance 8051 instruction set/binary compatible family; 8/16-bit/32-bit. MCS-251 32-bit ALU with 1/8/16/32-bit CISC instruction set and 24-bit external address space (16-bit wide segmented). Fully binary compatible to the 8051 8-bit family. 16-bit
Binary digits are found together in 128-bit collections. Modern GPU chips may operate data across a 256-bit memory bus (or possibly a 512-bit bus with HBM3 [3]). The Efficeon processor was Transmeta's second-generation 256-bit VLIW design which employed a software engine to convert code written for x86 processors to the native instruction set ...
EMBMEM (16-bit) parameter limit was removed. QEMM 7.0-7.03 can manage up to 128 MB EMS, 128 MB XMS. QEMM 7.04, 7.5, 8.0-8.3 and 97 (aka QEMM 9.0) can manage up to 256 MB EMS/XMS. By default, QEMM 7.04 and above provide up to a total of 64 MB RAM shared among XMS, EMS and VCPI memory, unless the USERAM= parameter is used.
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The NEC μCOM series is a series of microprocessors and microcontrollers manufactured by NEC in the 1970s and 1980s. The initial entries in the series were custom-designed 4 and 16-bit designs, but later models in the series were mostly based on the Intel 8080 and Zilog Z80 8-bit designs, and later, the Intel 8086 16-bit design.