MEMORY PARTITIONS

 

Table 3-7. Selecting a Window of Upper Register RAM

 

 

 

 

 

Register RAM

WSR Value

WSR Value

 

WSR Value

for 32-byte Window

for 64-byte Window

 

for 128-byte Window

Locations

 

(00E0–00FFH)

(00C0–00FFH)

 

(0080–00FFH)

 

 

 

 

 

 

 

0DE0–0DFFH

6FH

37H

 

 

0DC0–0DDFH

6EH

 

1BH

 

 

0DA0–0DBFH

6DH

36H

 

 

 

0D80–0D9FH

6CH

 

 

 

 

 

0D60–0D7FH

6BH

35H

 

 

0D40–0D5FH

6AH

 

1AH

 

 

0D20–0D3FH

69H

34H

 

 

 

0D00–0D1FH

68H

 

 

 

 

 

0CE0–0CFFH

67H

33H

 

 

0CC0–0CDFH

66H

 

19H

 

 

0CA0–0CBFH

65H

32H

 

 

 

0C80–0C9FH

64H

 

 

 

 

 

0C60–0C7FH

63H

31H

 

 

0C40–0C5FH

62H

 

18H

 

 

0C20–0C3FH

61H

30H

 

 

 

0C00–0C1FH

60H

 

 

 

 

 

3-9

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Intel 87C196CB, 8XC196NT user manual Selecting a Window of Upper Register RAM

8XC196NT, 87C196CB specifications

The Intel 87C196CB and 8XC196NT are microcontrollers from the C196 family, which was designed to meet the demands of embedded control technology. These microcontrollers are popular in various applications due to their robust architecture, extensive I/O capabilities, and specialized functionality, making them ideal for automotive, industrial, and communication systems.

The 87C196CB is distinguished by its 16-bit architecture, offering a balance of processing power and efficiency. It features a 16-bit data bus, which allows for fast data processing, and a 16-bit address bus, supporting up to 64KB of program memory. The microcontroller integrates on-chip memory, including 2KB of ROM and 128 bytes of RAM, which facilitates faster execution of programs and data handling.

One of the standout features of the 87C196CB is its versatility in I/O operations. It comes equipped with 32 general-purpose I/O lines that can be configured for various functions, including input, output, and interrupt handling. This flexibility enables developers to optimize the microcontroller for their specific application needs.

The 8XC196NT builds on the capabilities of its predecessor, offering advanced functionalities such as an enhanced instruction set and integrated peripherals. It includes additional features like timers, serial communication interfaces, and analog-to-digital converters, which expand its usability in complex embedded systems. The 8XC196NT supports multiple addressing modes, allowing for more efficient programming and memory management.

Both microcontrollers utilize innovative technologies that improve performance and power efficiency. The on-chip operating system support aids in real-time processing and multitasking, making them suitable for time-sensitive applications. Power management features are also incorporated, allowing these microcontrollers to operate in low-power modes, which is crucial for battery-operated devices.

The 87C196CB and 8XC196NT microcontrollers are characterized by their reliability and long service life, meeting the stringent demands of industrial applications. Their ability to perform tasks rapidly, combined with their diverse peripheral support, makes them popular choices among engineers and developers designing embedded systems. Overall, the Intel 87C196CB and 8XC196NT microcontrollers remain relevant in the rapidly evolving landscape of embedded technology, facilitating innovative solutions across various industries.