ELD Indirect

8XC196NP, 80C196NU USER’S MANUAL

	Table A-7. Instruction Opcodes (Continued)
Hex Code	Instruction Mnemonic

E6	EJMP
E7	LJMP
E8	ELD Indirect
E9	ELD Indexed
EA	ELDB Indirect
EB	ELDB Indexed
EC	DPTS
ED	EPTS
EE	Reserved (Note 1)
EF	LCALL
F0	RET
F1	ECALL
F2	PUSHF
F3	POPF
F4	PUSHA
F5	POPA
F6	IDLPD
F7	TRAP
F8	CLRC
F9	SETC
FA	DI
FB	EI
FC	CLRVT
FD	NOP
FE	DIV/DIVB/MUL/MULB (Note 2)
FF	RST

NOTES:

1.This opcode is reserved, but it does not generate an unimplemented opcode interrupt.

2.Signed multiplication and division are two-byte instructions. For each signed instruction, the first byte is “FE” and the second is the opcode of the corresponding unsigned instruction. For example, the opcode for MULU (3 operands) direct is “4C,” so the opcode for MUL (3 oper- ands) direct is “FE 4C.”

Table A-8 lists instructions along with their lengths and opcodes for each applicable addressing mode. A dash (—) in any column indicates “not applicable.”

A-52

Microcontroller, 80C196NU, 8XC196NP specifications

The Intel 8XC196NP and 80C196NU microcontrollers are part of Intel's renowned 16-bit microcontroller series that gained popularity in the 1980s and 1990s for embedded systems applications. Designed for a variety of applications, these microcontrollers are characterized by their robust performance, versatility, and industry-standard architecture.

The 8XC196NP features an enhanced instruction set with over 100 instructions, allowing for efficient code execution. It operates at clock speeds up to 16 MHz, which contributes to improved performance in time-sensitive applications. The microcontroller is equipped with a 16-bit data bus, enabling more efficient data handling compared to its 8-bit predecessors, thus accommodating complex algorithms and large data sets.

In terms of memory architecture, the 8XC196NP supports an addressable memory space of up to 64 KB of program memory and 64 KB of data memory. This configuration provides sufficient space for large applications while ensuring fast data access. The microcontroller includes integrated features such as timers, serial I/O capabilities, and interrupt processing, which enhance its functionality for real-time applications and control mechanisms.

The 80C196NU, on the other hand, is designed for lower power operation, making it suitable for battery-powered devices. This microcontroller maintains similar features to the 8XC196NP while offering advancements that support low-power consumption. The 80C196NU can also function in a range of temperature environments, making it adaptable for industrial applications.

Both the 8XC196NP and 80C196NU support external memory interfacing, allowing designers to expand the system's capability by connecting additional ROM and RAM. This flexibility makes them appealing for developing complex systems, such as motor controls, industrial automation, and consumer electronics.

Another standout feature of these microcontrollers is their built-in debugging capabilities. Intel provided hardware and software tools that enabled developers to test and troubleshoot their applications effectively, reducing the development time and increasing reliability.

Overall, the Intel 8XC196NP and 80C196NU microcontrollers stand out for their dependability, versatility, and performance, contributing significantly to the evolution of embedded system design. Their legacy continues to influence modern microcontroller technology, ensuring their relevance in a wide array of applications today.

Intel 80C196NU, 8XC196NP, Microcontroller manual ELD Indirect

Models: Microcontroller 80C196NU 8XC196NP

8XC196NP, 80C196NU USER’S MANUAL

Table A-7. Instruction Opcodes (Continued)

RST

Microcontroller, 80C196NU, 8XC196NP specifications