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General| Brand | ABOV SEMICONDUCTOR |
|---|---|
| Model | MC81F4204 |
| Category | Microcontrollers |
| Language | English |
Records changes and updates across different manual versions.
Provides a general description and key features of the MCU.
Lists supported development tools such as assemblers and emulators.
Details device naming conventions and package options.
Illustrates the MCU's internal architecture and component connections.
Shows pin assignments for 20-pin PDIP, SOP, and TSSOP packages.
Displays pin configurations for 20-pin QFN and 16-pin packages.
Summarizes alternative functions for pins across different packages.
Mechanical dimensions for 20-pin PDIP and SOP packages.
Mechanical dimensions for the 20-pin TSSOP package.
Mechanical dimensions for 20-pin QFN and 16-pin PDIP packages.
Mechanical dimensions for 16-pin SOP and TSSOP packages.
Describes the function and alternative functions of MCU pins like R0-R3, EXT, etc.
Details various port structures including Schmitt trigger, open-drain, and ADC interfaces.
Defines electrical limits beyond which device damage may occur.
Specifies voltage and temperature ranges for normal device operation.
Specifies DC parameters such as input/output voltages and leakage currents.
Graphs illustrating typical electrical behavior under various conditions.
Explains configuration bits for LVR, oscillator, and other chip settings.
Provides timing diagrams and examples for reading ROM options.
Introduces CPU registers like Accumulator, X, Y, SP, and PSW.
Describes the stack's purpose, operation, and memory allocation.
Explains the function of Special Function Registers for device control.
Details the MCU's program memory map, including reset and interrupt vector areas.
Outlines the organization of internal data memory (RAM, Stack, Control).
Describes user RAM, pages, and the RAM Page Select Register.
Explains the six addressing modes used by the MCU for memory access.
Describes R0 port functionality and associated control registers.
Describes R1 port functionality and associated control registers.
Describes R3 port functionality and associated control registers.
Registers to enable or disable specific interrupt sources.
Registers indicating pending interrupt requests.
Registers showing the status of interrupt flags.
Step-by-step process of handling an interrupt request.
Details on the BRK software interrupt and its handling.
Explains how multiple interrupts share vector addresses.
Table mapping interrupt sources to addresses and priorities.
Registers for configuring external interrupt sources and edges.
Registers indicating pending external interrupt requests.
Steps required to generate and handle external interrupts.
Example circuits for crystal, ceramic, and external clock oscillators.
Guidelines for PCB layout related to oscillator circuits.
Details on registers controlling the Basic Interval Timer.
Table showing interrupt periods based on clock source selection.
Illustrates the Watchdog Timer's functional block diagram.
Details on the Watchdog Timer Data and Status Registers.
Data and Counter registers for Timer 0 and Timer 1.
Timer 0 Status and Control Register configuration.
Timer 1 Status and Control Register configuration.
Block diagram and components of Timer 0 in 8-bit mode.
Explains Interval Timer, PWM, and Capture modes for Timer 0.
Block diagram and components of Timer 1 in 8-bit mode.
Explains Interval Timer, PWM, and Capture modes for Timer 1.
Data and Counter registers for Timer 2.
Timer 2 Status and Control Register configuration.
Illustrates the Timer 2 block diagram.
Explains Interval Timer and Capture modes for Timer 2.
Block diagram of the High Speed PWM function.
Control and data registers for the PWM module.
Registers for setting PWM duty cycle values.
Block diagram for the Buzzer driver circuit.
Buzzer driver and period data registers.
Table correlating BUPDR values with output frequencies.
Block diagram of the 12-bit ADC module.
Mode, data high, and data low registers for ADC.
Steps required to perform an analog-to-digital conversion.
Timing parameters and requirements for ADC conversion.
Information on internal reference voltage levels for ADC.
Recommended circuit diagram for ADC input.
Block diagram of the Serial I/O module.
Control, data, and prescaler registers for the SIO module.
Steps for configuring and using the Serial I/O module.
Describes the reset sequence, stabilization time, and initialization.
Lists the four sources that can trigger a reset.
Provides an example circuit for implementing an external reset.
Refers to the Watchdog Timer section for reset details.
Details on the internal POR circuit and its control register.
Details on the LVR circuit and its configurability via ROM option.
Describes the Sleep mode, its entry, and release conditions.
Describes the Stop mode, clock freezing, and power reduction aspects.
Compares peripheral operation during Sleep and Stop power-saving modes.
How to adjust system stabilizing time after reset or wake-up.
Techniques to reduce power draw in Stop mode.
Identifies and describes major components of the emulator board.
Procedure for setting up the ISP software and hardware.
Describes the features and functions of the ISP software.
Specifies the necessary hardware connections and configurations for ISP.
Procedure for entering ISP mode during system power-up.
Diagram and description of the USB-SIO-ISP board and connector.
Glossary of terms and symbols used in the instruction set.
Table mapping instruction opcodes to their operations and flags.
Lists and describes arithmetic and logic instructions.
Lists and describes instructions for 16-bit operations.
Lists and describes conditional and unconditional branch/jump instructions.
Lists instructions for control, interrupts, and other operations.
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