REGISTERS

WSR

Table C-18. WSR Settings and Direct Addresses for Windowable SFRs (Continued)

 

 

32-byte Windows

64-byte Windows

128-byte Windows

Register

Memory

(00E0–00FFH)

(00C0–00FFH)

(0080–00FFH)

 

 

 

 

 

 

Mnemonic

Location

WSR

Direct

WSR

Direct

WSR

Direct

 

 

 

 

Address

Address

Address

 

 

 

 

 

 

 

 

 

 

 

 

 

P4_DIR

1FDBH

7EH

00FBH

3FH

00DBH

1FH

00DBH

 

 

 

 

 

 

 

 

P4_MODE

1FD9H

7EH

00F9H

3FH

00D9H

1FH

00D9H

 

 

 

 

 

 

 

 

P4_PIN

1FDFH

7EH

00FFH

3FH

00DFH

1FH

00DFH

 

 

 

 

 

 

 

 

P4_REG

1FDDH

7EH

00FDH

3FH

00DDH

1FH

00DDH

 

 

 

 

 

 

 

 

PWM0_CONTROL

1FB0H

7DH

00F0H

3EH

00F0H

1FH

00B0H

 

 

 

 

 

 

 

 

PWM1_CONTROL

1FB2H

7DH

00F2H

3EH

00F2H

1FH

00B2H

 

 

 

 

 

 

 

 

PWM2_CONTROL

1FB4H

7DH

00F4H

3EH

00F4H

1FH

00B4H

 

 

 

 

 

 

 

 

SBUF_RX

1FB8H

7DH

00F8H

3EH

00F8H

1FH

00B8H

 

 

 

 

 

 

 

 

SBUF_TX

1FBAH

7DH

00FAH

3EH

00FAH

1FH

00BAH

 

 

 

 

 

 

 

 

SP_BAUD

1FBCH

7DH

00FCH

3EH

00FCH

1FH

00BCH

 

 

 

 

 

 

 

 

SP_CON

1FBBH

7DH

00FBH

3EH

00FBH

1FH

00BBH

 

 

 

 

 

 

 

 

SP_STATUS

1FB9H

7DH

00F9H

3EH

00F9H

1FH

00B9H

 

 

 

 

 

 

 

 

T1CONTROL

1F90H

7CH

00F0H

3EH

00D0H

1FH

0090H

 

 

 

 

 

 

 

 

T2CONTROL

1F94H

7CH

00F4H

3EH

00D4H

1FH

0094H

 

 

 

 

 

 

 

 

TIMER1

1F92H

7CH

00F2H

3EH

00D2H

1FH

0092H

TIMER2

1F96H

7CH

00F6H

3EH

00D6H

1FH

0096H

Must be addressed as a word.

C-51

Page 442
Image 442
Intel 8XC196NP P4DIR 1FDBH 7EH 00FBH 3FH 00DBH 1FH P4MODE 1FD9H, PWM1CONTROL 1FB2H 7DH, PWM2CONTROL 1FB4H 7DH, TIMER1 †

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.