8XC196NP, 80C196NU USER’S MANUAL

WSR1

WSR1

Address:

0015H

(80C196NU)

Reset State:

00H

Window selection 1 (WSR1) register selects a 32- or 64-byte segment of the upper register file or peripheral SFRs to be windowed into the middle of the lower register file, below any window selected by the WSR.

80C196NU

7

W6

W5

W4

 

 

 

 

0

W3

W2

W1

W0

 

 

 

 

Bit

Bit

Function

Number

Mnemonic

 

 

 

 

7

Reserved; always write as zero.

 

 

 

6:0

W6:0

Window Selection

 

 

These bits specify the window size and window number. See Table 5-8 on

 

 

page 5-15 or Table 5-9 on page 5-15.

 

 

 

Table C-19. WSR1 Settings and Direct Addresses for Windowable SFRs

 

 

32-byte Windows

64-byte Windows

Register

Memory

(0060–007FH)

(0040–007FH)

 

 

 

 

Mnemonic

Location

WSR1

Direct

WSR1

Direct

 

 

 

 

Address

Address

 

 

 

 

 

 

 

 

 

 

ADDRCOM0

1F40H

7AH

0060H

3DH

0040H

ADDRCOM1

1F48H

7AH

0068H

3DH

0048H

ADDRCOM2

1F50H

7AH

0070H

3DH

0050H

ADDRCOM3

1F58H

7AH

0078H

3DH

0058H

ADDRCOM4

1F60H

7BH

0060H

3DH

0060H

ADDRCOM5

1F68H

7BH

0068H

3DH

0068H

ADDRMSK0

1F42H

7AH

0062H

3DH

0042H

ADDRMSK1

1F4AH

7AH

006AH

3DH

004AH

ADDRMSK2

1F52H

7AH

0072H

3DH

0052H

ADDRMSK3

1F5AH

7AH

007AH

3DH

005AH

ADDRMSK4

1F62H

7BH

0062H

3DH

0062H

ADDRMSK5

1F6AH

7BH

006AH

3DH

006AH

BUSCON0

1F44H

7AH

0064H

3DH

0044H

 

 

 

 

 

 

BUSCON1

1F4CH

7AH

006CH

3DH

004CH

 

 

 

 

 

 

BUSCON2

1F54H

7AH

0074H

3DH

0054H

 

 

 

 

 

 

BUSCON3

1F5CH

7AH

007CH

3DH

005CH

 

 

 

 

 

 

BUSCON4

1F64H

7BH

0064H

3DH

0064H

 

 

 

 

 

 

Must be addressed as a word.

C-52

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Intel Microcontroller, 80C196NU, 8XC196NP manual WSR1, Register Memory 0060-007FH 0040-007FH Mnemonic Location

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.