Peripheral SFRs | Intel 80C196NU, 8XC196NP, Microcontroller instruction

8XC196NP, 80C196NU USER’S MANUAL

Table 5-5. Peripheral SFRs

Reserved Locations

Address	High (Odd) Byte	Low (Even) Byte
1FEEH	Reserved	Reserved
1FECH	Reserved	Reserved
1FEAH	Reserved	Reserved
1FE8H	Reserved	Reserved
	Ports 1–4 SFRs
Address	High (Odd) Byte	Low (Even) Byte
1FDEH	P4_PIN	P3_PIN
1FDCH	P4_REG	P3_REG
1FDAH	P4_DIR	P3_DIR
1FD8H	P4_MODE	P3_MODE
1FD6H	P2_PIN	P1_PIN
1FD4H	P2_REG	P1_REG
1FD2H	P2_DIR	P1_DIR
1FD0H	P2_MODE	P1_MODE
1FCEH	Reserved	Reserved
• • •	• • •	• • •
1FC0H	Reserved	Reserved
EPA, Timer 1, and Timer 2 SFRs
Address	High (Odd) Byte	Low (Even) Byte
1F9EH	Reserved	EPA_PEND †††
1F9CH	Reserved	EPA_MASK
1F9AH	Reserved	Reserved
1F98H	Reserved	Reserved
† 1F96H	TIMER2 (H)	TIMER2 (L)
1F94H	Reserved	T2CONTROL
† 1F92H	TIMER1 (H)	TIMER1 (L)
1F90H	Reserved	T1CONTROL
† 1F8EH	EPA3_TIME (H)	EPA3_TIME (L)
† 1F8CH	EPA3_CON (H)	EPA3_CON (L)
† 1F8AH	EPA2_TIME (H)	EPA2_TIME (L)
1F88H	Reserved	EPA2_CON
† 1F86H	EPA1_TIME (H)	EPA1_TIME (L)
† 1F84H	EPA1_CON (H)	EPA1_CON (L)
† 1F82H	EPA0_TIME (H)	EPA0_TIME (L)
1F80H	Reserved	EPA0_CON

EPORT SFRs

Address	High (Odd) Byte	Low (Even) Byte
†† 1FE6H	EP_PIN	Reserved
†† 1FE4H	EP_REG	Reserved
†† 1FE2H	EP_DIR	Reserved
†† 1FE0H	EP_MODE	Reserved
	Serial I/O and PWM SFRs
Address	High (Odd) Byte	Low (Even) Byte
1FBEH	Reserved	Reserved
1FBCH	SP_BAUD (H)	SP_BAUD (L)
1FBAH	SP_CON	SBUF_TX
1FB8H	SP_STATUS	SBUF_RX
1FB6H	Reserved	CON_REG0
1FB4H	Reserved	PWM2_CONTROL
1FB2H	Reserved	PWM1_CONTROL
1FB0H	Reserved	PWM0_CONTROL
1FAEH	Reserved	Reserved
• • •	• • •	• • •
1FA0H	Reserved	Reserved
	Chip-select SFRs
Address	High (Odd) Byte	Low (Even) Byte
† 1F6EH	Reserved	Reserved
† 1F6CH	Reserved	BUSCON5
† 1F6AH	ADDRMSK5 (H)	ADDRMSK5 (L)
1F68H	ADDRCOM5 (H)	ADDRCOM5 (L)
† 1F66H	Reserved	Reserved
† 1F64H	Reserved	BUSCON4
† 1F62H	ADDRMSK4 (H)	ADDRMSK4 (L)
1F60H	ADDRCOM4 (H)	ADDRCOM4 (L)
1F5EH	Reserved	Reserved
1F5CH	Reserved	BUSCON3
1F5AH	ADDRMSK3 (H)	ADDRMSK3 (L)
1F58H	ADDRCOM3 (H)	ADDRCOM3 (L)
1F56H	Reserved	Reserved
1F54H	Reserved	BUSCON2
1F52H	ADDRMSK2 (H)	ADDRMSK2 (L)
1F50H	ADDRCOM2 (H)	ADDRCOM2 (L)

†Must be addressed as a word.

††For the 8XC196NP, these are memory-mapped locations. They must be addressed with indirect or indexed instructions, and they cannot be windowed.

†††The EPA_PEND register was called EPA_STAT in previous documentation for the 8XC196NP.

††††The 8XC196NP can be identified by its signature word, 80EFH, at locations 1F46–1F47H. The 8XC196NU has no signature word; locations 1F46–1F47H are reserved.

5-8

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 Peripheral SFRs

Models: Microcontroller 80C196NU 8XC196NP

8XC196NP, 80C196NU USER’S MANUAL

Table 5-5. Peripheral SFRs

Ports 1–4 SFRs

EPA, Timer 1, and Timer 2 SFRs

EPORT SFRs

Serial I/O and PWM SFRs

Chip-select SFRs

ADDRCOM2 (H)

ADDRCOM2 (L)

Microcontroller, 80C196NU, 8XC196NP specifications