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General| Brand | Renesas |
|---|---|
| Model | R8C series |
| Category | Computer Hardware |
| Language | English |
Lists various application areas for electric household appliances, office equipment, and industrial uses.
Outlines the functions and specifications for R8C/1A and R8C/1B groups.
Guidance on handling unused pins to prevent noise induction and potential malfunctions in LSI operation.
Explains the indeterminate states of internal circuits and pins during power supply until reset completion.
States that accessing reserved addresses is prohibited to maintain LSI operation integrity and future expansion.
Provides instructions on stabilizing clock signals after reset and during program execution.
Highlights that type numbers within the same group may have differing internal memory and layout patterns.
Defines the manual's purpose and the intended audience for understanding hardware functions and electrical characteristics.
Explains how register, bit, and pin names are referred to using symbols in the text.
Details the use of 'b' for binary and 'h' for hexadecimal, with no suffix for decimal numbers.
Explains how PDi_j bits control I/O ports and the structure of Pi registers, including latch and pin state reading.
Describes how programmable I/O ports function for peripheral operations, referencing pin name information.
Illustrates the configuration of specific I/O pins that are not programmable, such as RESET and MODE.
Covers stop mode, wait mode, oscillation stop detection, and selecting oscillation constants.
Provides an overview of interrupt types, maskable vs. non-maskable interrupts, and priority.
Details the INT0 and INT1 interrupts, including input filters, polarity selection, and registers.
Explains the key input interrupt generation by pins K10-K13, its use as a wake-up function, and related registers.
Describes the address match interrupt for debugging, its generation, and associated registers.
Explains peripheral function interrupts as maskable interrupts generated by internal MCU functions.
Details enabling/disabling maskable interrupts and setting priorities using I flag, IPL, and ILVL bits.
Describes watchdog timer specifications when count source protection mode is disabled, using CPU clock.
Details watchdog timer specifications when count source protection mode is enabled, using low-speed oscillator.
Details Timer X, an 8-bit timer with prescaler, covering its modes and associated registers.
Describes Timer Z, an 8-bit timer with prescaler, covering its modes and associated registers.
Explains Timer C, a 16-bit timer with input capture and output compare modes, and its registers.
Explains the clock synchronous serial I/O mode, its configurations, and associated registers.
Describes the UART mode for asynchronous serial data transmission and reception, including bit rate settings.
Provides important notes on reading and writing serial interface registers, error detection, and data handling.
Outlines the four modes of the clock synchronous serial interface, including SSU, I2C, communication, and serial modes.
Details SSU specifications, including transfer data format, operating modes, master/slave devices, and pins.
Explains the I2C bus interface specifications, block diagram, timing examples, and associated registers.
Details the one-shot mode where a single pin's analog voltage is converted once.
Explains the repeat mode for continuous A/D conversion of a selected pin.
Discusses the sample and hold function and its impact on conversion rate and accuracy.
Lists the timing requirements for A/D conversion in various modes and resolutions.
Illustrates the internal equivalent circuit of the analog input block, useful for circuit design.
Explains the configuration and application of inflow current bypass circuits for noise reduction.
Addresses the impact of sensor output impedance on A/D conversion accuracy and charging time.
Provides essential notes on register access, voltage settings, operating modes, and prohibited instructions.
Introduces flash memory rewrite operations in CPU, serial, and parallel I/O modes.
Details the flash memory block diagrams for R8C/1A and R8C/1B groups, showing ROM and data flash areas.
Explains ID code check and ROM code protect functions to safeguard flash memory from unauthorized access.
Describes rewriting the user ROM area directly from the CPU using software commands.
Lists critical limits for voltage, power dissipation, and temperature to prevent device damage.
Specifies voltage, clock frequency, and temperature ranges for ensuring reliable device operation.
Covers precautions for stop mode, wait mode, oscillation stop detection, and selecting oscillation constants.
Provides notes on reading address 00000h, SP setting, external/key input interrupts, and watchdog timer.
Details precautions for Timer X and Timer Z to ensure correct operation and prevent issues like incorrect counting.
Provides notes on serial interface register access, error handling, and data transfer for UART and synchronous modes.
Covers precautions for accessing registers and selecting signal pins in clock synchronous serial I/O modes.
Provides notes on register operations, voltage settings, operating modes, and prohibited instructions for the A/D converter.
Details important notes regarding CPU rewrite mode, operating speed, prohibited instructions, and interrupt handling for flash memory.
