Intel Microcontroller manual Table C-1. Modules and Related Registers, Chip Configuration, Cpu Epa

Models: Microcontroller 80C196NU 8XC196NP

1 471
Download 471 pages 22.3 Kb
Page 392
Image 392

APPENDIX C

REGISTERS

This appendix provides reference information about the device registers. Table C-1 lists the mod- ules and major components of the device with their related configuration and status registers. Ta- ble C-2 lists the registers, arranged alphabetically by mnemonic, along with their names, addresses, and reset values. Following the tables, individual descriptions of the registers are ar- ranged alphabetically by mnemonic.

.

Table C-1. Modules and Related Registers

Chip Configuration

Chip-select Units

CPU

EPA

(x = 0–5)

(x = 0, 2)

(x = 0–3)

 

 

 

 

 

CCR0

ADDRCOMx

ACC_0x (80C196NU)

EPA_MASK

CCR1

ADDRMSKx

ACC_STAT (80C196NU)

EPA_PEND

 

BUSCONx

ONES_REG

EPAx_CON

 

 

PSW

EPAx_TIME

 

 

SP

 

 

 

ZERO_REG

 

Extended Port

I/O Ports

Interrupts

Memory Control

(x = 1–4)

 

 

 

 

 

 

 

EP_DIR

Px_DIR

INT_MASK

WSR

EP_MODE

Px_MODE

INT_MASK1

WSR1 (80C196NU)

EP_PIN

Px_PIN

INT_PEND

 

EP_REG

Px_REG

INT_PEND1

 

 

 

 

 

PWM

PTS

Serial Port

Timers

(x = 0–2)

(x = 1–2)

 

 

 

 

 

 

CON_REG0

PTSSEL

SBUF_RX

TIMERx

PWMx_CONTROL

PTSSRV

SBUF_TX

TxCONTROL

 

 

SP_BAUD

 

 

 

SP_CON

 

 

 

SP_STATUS

 

C-1

Page 392
Image 392
Intel Microcontroller manual Table C-1. Modules and Related Registers, Chip Configuration, Cpu Epa, Interrupts, Serial Port

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.