8051 Addressing Modes: The 8051 Addressing Modes architecture supports several distinct physical address spaces. On - chip program memory On - chip data memory External program memory External data memory On-chip special function registers The…
Arithmetic Instructions in 8051: The Arithmetic Instructions in 8051 of Basic Assembly Language Programming are ADD, ADDC, SUBB and DA The ADD instruction adds a byte variable with the accumulator, leaving the result in the…
8051 Interrupts: The 8051 Interrupts provides 5 interrupt sources. The 8052 provides 6. These are shown in Fig. 12.28. The external Interrupts INT0 and INT1 can each- be either level-activated or transition-activated, depending on bits…
Serial Communication Interface in Microprocessor: The Serial Communication Interface in Microprocessor is full duplex, meaning it can transmit and receive simultaneously. It is also receive-buffered, meaning it can commence reception of a second byte before…
Timers and Counters in 8051 Microcontroller: The Timers and Counters in 8051 Microcontroller has two 16-bit Timer/Counter registers : Timer 0 and Timer 1. The 8052 has these two plus one more : Timer 2.…
Intel 8051 Architecture and 8031 Architecture: Fig. 12.2 shows the Intel 8051 Architecture and 8031 Architecture. It consists of a Central Processing Unit, two kinds of memory (data RAM plus program ROM/EPROM) Input/Output ports, the…
Features of 8051 Microcontroller: The Features of 8051 Microcontroller family are as follows. 1. Single-supply +5 volt operation using HMOS technology. 2. 4096 bytes program memory on-chip (not on 8031). 3. 128 bytes data memory…
68000 Stack and Queue: 68000 Stack and Queue - 68000 supports stack and queue data structures with the address register indirect position direct and predecrement addressing modes. A stack operates on the principle of Last…
Exceptions Types of Motorola 68000: Exception means an interrupt processing. Like 8086, Exceptions Types of Motorola 68000 also uses a jump vector table to transfer program control to the appropriate handler program, whenever an exception…
Motorola 68000 Instruction Set: There are actually 56 basic instructions provided in the Motorola 68000 Instruction Set. With 14 addressing modes, 56 instructions, and 5 data types, the 68000 includes more than 1000 opcodes. The…
