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28/40/44/48-Pin, Low-Power, High-Performance Microcontroller with XLP Technology
Introduction
PIC18-Q43 Family Types
Features
Memory
Operating Characteristics
Power-Saving Functionality
Digital Peripherals
Analog Peripherals
Clocking Structure
Programming/Debug Features
Q43 Block Diagram
1 Packages
2 Pin Diagrams
3 Pin Allocation Tables
4 Guidelines for Getting Started with PIC18-Q43 Microcontrollers
4.1 Basic Connection Requirements
4.2 Power Supply Pins
4.3 Master Clear (MCLR) Pin
4.4 In-Circuit Serial Programming™ (ICSP™) Pins
4.5 External Oscillator Pins
4.6 Unused I/Os
5 Register and Bit Naming Conventions
5.1 Register Names
5.2 Bit Names
5.3 Register and Bit Naming Exceptions
6 Register Legend
7 PIC18 CPU
7.1 System Arbitration
7.2 Memory Access Scheme
7.3 8x8 Hardware Multiplier
7.4 PIC18 Instruction Cycle
7.5 STATUS Register
7.6 Call Shadow Register
7.7 Register Definitions: System Arbiter
7.8 Register Summary - System Arbiter Control
8 Device Configuration
8.1 Configuration Settings
8.2 Code Protection
8.3 User ID
8.4 Device ID and Revision ID
8.5 Register Definitions: Configuration Settings
8.6 Register Summary - Configuration Settings
8.7 Register Definitions: Device ID and Revision ID
8.8 Register Summary - DEVID/REVID
9 Memory Organization
9.1 Program Memory Organization
9.2 Device Information Area
9.3 Device Configuration Information
9.4 Data Memory Organization
9.5 Data Addressing Modes
9.6 Data Memory and the Extended Instruction Set
9.7 Register Definitions: Memory Organization
9.8 Register Summary - Memory Organization
10 NVM - Nonvolatile Memory Module
10.1 Operations
10.2 Unlock Sequence
10.3 Program Flash Memory (PFM)
10.4 Data Flash Memory (DFM)
10.5 Register Definitions: NVM
10.6 Register Summary - NVM
11 VIC - Vectored Interrupt Controller Module
11.1 Overview
11.2 Interrupt Control and Status Registers
11.3 Interrupt Vector Table
11.4 Interrupt Priority
11.5 Interrupt Operation
11.6 Context Saving
11.7 Returning from Interrupt Service Routine (ISR)
11.8 Interrupt Latency
11.9 Interrupt Setup Procedure
11.10 External Interrupt Pins
11.11 Wake-Up from Sleep
11.12 Interrupt Compatibility
11.13 Register Definitions: Interrupt Control
11.14 Register Summary - Interrupts
12 OSC - Oscillator Module (With Fail-Safe Clock Monitor)
12.1 Clock Source Types
12.2 Clock Switching
12.3 Fail-Safe Clock Monitor (FSCM)
12.4 Active Clock Tuning (ACT)
12.5 Register Definitions: Oscillator Module
12.6 Register Summary - Oscillator Module
13 CRC - Cyclic Redundancy Check Module with Memory Scanner
13.1 CRC Module Overview
13.2 CRC Functional Overview
13.3 CRC Polynomial Implementation
13.4 CRC Data Sources
13.5 CRC Check Value
13.6 CRC Interrupt
13.7 Configuring the CRC
13.8 Scanner Module Overview
13.9 Configuring the Scanner
13.10 Scanner Interrupt
13.11 Scanning Modes
13.12 Register Definitions: CRC and Scanner Control
13.13 Register Summary - CRC
14 Resets
14.1 Power-on Reset (POR)
14.2 Brown-out Reset (BOR)
14.3 Low-Power Brown-out Reset (LPBOR)
14.4 MCLR Reset
14.5 Windowed Watchdog Timer (WWDT) Reset
14.6 RESET Instruction
14.7 Stack Overflow/Underflow Reset
14.8 Programming Mode Exit
14.9 Power-up Timer (PWRT)
14.10 Start-Up Sequence
14.11 Determining the Cause of a Reset
14.12 Power Control (PCON0/PCON1) Registers
14.13 Register Definitions: Power Control
14.14 Register Summary - BOR Control and Power Control
15 WWDT - Windowed Watchdog Timer
15.1 Independent Clock Source
15.2 WWDT Operating Modes
15.3 Time-Out Period
15.4 Watchdog Window
15.5 Clearing the Watchdog Timer
15.6 Operation During Sleep
15.7 Register Definitions: Windowed Watchdog Timer Control
15.8 Register Summary - WDT Control
16 DMA - Direct Memory Access
16.1 DMA Registers
16.2 DMA Organization
16.3 DMA Interface
16.4 Disable DMA Message Transfer Upon Completion
16.5 Types of Hardware Triggers
16.6 Types of Data Transfers
16.7 DMA Interrupts
16.8 DMA Setup and Operation
16.9 Reset
16.10 Power-Saving Mode Operation
16.11 Example Setup Code
16.12 Register Overlay
16.13 Register Definitions: DMA
16.14 Register Summary - DMA
17 Power-Saving Modes
17.1 Doze Mode
17.2 Sleep Mode
17.3 Idle Mode
17.4 Peripheral Operation in Power-Saving Modes
17.5 Register Definitions: Power-Savings Control
17.6 Register Summary - Power-Savings Control
18 PMD - Peripheral Module Disable
18.1 Overview
18.2 Disabling a Module
18.3 Enabling a Module
18.4 Register Definitions: Peripheral Module Disable
18.5 Register Summary - PMD
19 I/O Ports
19.1 Overview
19.2 PORTx - Data Register
19.3 LATx - Output Latch
19.4 TRISx - Direction Control
19.5 ANSELx - Analog Control
19.6 WPUx - Weak Pull-Up Control
19.7 INLVLx - Input Threshold Control
19.8 SLRCONx - Slew Rate Control
19.9 ODCONx - Open-Drain Control
19.10 Edge Selectable Interrupt-on-Change
19.11 I2C Pad Control
19.12 I/O Priorities
19.13 MCLR/VPP/RE3 Pin
19.14 Register Definitions: Port Control
19.15 Register Summary - I/O Ports
20 IOC - Interrupt-on-Change
20.1 Overview
20.2 Enabling the Module
20.3 Individual Pin Configuration
20.4 Interrupt Flags
20.5 Clearing Interrupt Flags
20.6 Operation in Sleep
20.7 Register Definitions: Interrupt-on-Change Control
20.8 Register Summary - Interrupt-on-Change Control
21 PPS - Peripheral Pin Select Module
21.1 Overview
21.2 PPS Inputs
21.3 PPS Outputs
21.4 Bidirectional Pins
21.5 PPS Lock
21.6 Operation During Sleep
21.7 Effects of a Reset
21.8 Register Definitions: Peripheral Pin Select (PPS)
21.9 Register Summary - Peripheral Pin Select Module
22 CLC - Configurable Logic Cell
22.1 CLC Setup
22.2 CLC Interrupts
22.3 Effects of a Reset
22.4 Output Mirror Copies
22.5 Operation During Sleep
22.6 CLC Setup Steps
22.7 Register Overlay
22.8 Register Definitions: Configurable Logic Cell
22.9 Register Summary - CLC Control
23 CLKREF - Reference Clock Output Module
23.1 Clock Source
23.2 Programmable Clock Divider
23.3 Selectable Duty Cycle
23.4 Operation in Sleep Mode
23.5 Register Definitions: Reference Clock
23.6 Register Summary - Reference CLK
24 TMR0 - Timer0 Module
24.1 Timer0 Operation
24.2 Clock Selection
24.3 Timer0 Output and Interrupt
24.4 Operation During Sleep
24.5 Register Definitions: Timer0 Control
24.6 Register Summary - Timer0
25 TMR1 - Timer1 Module with Gate Control
25.1 Timer1 Operation
25.2 Clock Source Selection
25.3 Timer1 Prescaler
25.4 Secondary Oscillator
25.5 Timer1 Operation in Asynchronous Counter Mode
25.6 Timer1 16-Bit Read/Write Mode
25.7 Timer1 Gate
25.8 Timer1 Interrupt
25.9 Timer1 Operation During Sleep
25.10 CCP Capture/Compare Time Base
25.11 CCP Special Event Trigger
25.12 Peripheral Module Disable
25.13 Register Definitions: Timer1 Control
25.14 Register Summary - Timer1
26 TMR2 - Timer2 Module
26.1 Timer2 Operation
26.2 Timer2 Output
26.3 External Reset Sources
26.4 Timer2 Interrupt
26.5 PSYNC Bit
26.6 CSYNC Bit
26.7 Operating Modes
26.8 Operation Examples
26.9 Timer2 Operation During Sleep
26.10 Register Definitions: Timer2 Control
26.11 Register Summary - Timer2
27 SMT - Signal Measurement Timer
27.1 SMT Operation
27.2 Register Definitions: SMT Control
27.3 Register Summary - SMT Control
28 CCP - Capture/Compare/PWM Module
28.1 CCP Module Configuration
28.2 Capture Mode
28.3 Compare Mode
28.4 PWM Overview
28.5 Register Definitions: CCP Control
28.6 Register Summary - CCP Control
29 Capture, Compare, and PWM Timers Selection
29.1 Register Definitions: Capture, Compare, and PWM Timers Selection
29.2 Register Summary - Capture, Compare, and PWM Timers Selection
30 PWM - Pulse-Width Modulator with Compare
30.1 Output Slices
30.2 Period Timer
30.3 Clock Sources
30.4 External Period Resets
30.5 Buffered Period and Parameter Registers
30.6 Synchronizing Multiple PWMs
30.7 Interrupts
30.8 Operation During Sleep
30.9 Register Definitions: PWM Control
30.10 Register Summary - PWM
31 CWG - Complementary Waveform Generator Module
31.1 Fundamental Operation
31.2 Operating Modes
31.3 Clock Source
31.4 Selectable Input Sources
31.5 Output Control
31.6 Dead-Band Control
31.7 Rising Edge and Reverse Dead Band
31.8 Falling Edge and Forward Dead Band
31.9 Dead-Band Jitter
31.10 Auto-Shutdown
31.11 Auto-Shutdown Restart
31.12 Operation During Sleep
31.13 Configuring the CWG
31.14 Register Definitions: CWG Control
31.15 Register Summary - CWG
32 NCO - Numerically Controlled Oscillator Module
32.1 NCO Operation
32.2 Fixed Duty Cycle Mode
32.3 Pulse Frequency Mode
32.4 Output Polarity Control
32.5 Interrupts
32.6 Effects of a Reset
32.7 Operation in Sleep
32.8 Register Definitions: NCO
32.9 Register Summary - NCO
33 DSM - Data Signal Modulator Module
33.1 DSM Operation
33.2 Carrier Synchronization
33.3 Carrier Source Polarity Select
33.4 Programmable Modulator Data
33.5 Modulated Output Polarity
33.6 Operation in Sleep Mode
33.7 Effects of a Reset
33.8 Peripheral Module Disable
33.9 Register Definitions: Modulation Control
33.10 Register Summary - DSM
34 UART - Universal Asynchronous Receiver Transmitter with Protocol Support
34.1 UART I/O Pin Configuration
34.2 UART Asynchronous Modes
34.3 DMX Mode (Full-Featured UARTs Only)
34.4 LIN Modes (Full-Featured UARTs Only)
34.5 DALI Mode (Full-Featured UARTs Only)
34.6 General Purpose Manchester (Full-Featured UARTs Only)
34.7 Polarity
34.8 Stop Bits
34.9 Operation After FIFO Overflow
34.10 Receive and Transmit Buffers
34.11 Flow Control
34.12 Checksum (Full-Featured UARTs Only)
34.13 Collision Detection (Full-Featured UARTs Only)
34.14 RX/TX Activity Time-Out
34.15 Clock Accuracy with Asynchronous Operation
34.16 UART Baud Rate Generator
34.17 Transmitting a Break
34.18 Receiving a Break
34.19 UART Operation During Sleep
34.20 Register Definitions: UART
34.21 Register Summary - UART
35 SPI - Serial Peripheral Interface Module
35.1 SPI Controls
35.2 SPI Operation
35.3 Host Mode
35.4 Client Mode
35.5 SPI Operation in Sleep Mode
35.6 SPI Interrupts
35.7 Register Definitions: Serial Peripheral Interface
35.8 Register Summary - SPI Control
36 I2C - Inter-Integrated Circuit Module
36.1 I2C Features
36.2 I2C Terminology
36.3 I2C Module Overview
36.4 I2C Operation
36.5 Register Definitions: I2C Control
36.6 Register Summary - I2C
37 HLVD - High/Low-Voltage Detect
37.1 Operation
37.2 Setup
37.3 Current Consumption
37.4 HLVD Start-Up Time
37.5 Applications
37.6 Operation During Sleep
37.7 Operation During Idle and Doze Modes
37.8 Effects of a Reset
37.9 Register Definitions: HLVD Control
37.10 Register Summary - HLVD
38 FVR - Fixed Voltage Reference
38.1 Independent Gain Amplifiers
38.2 FVR Stabilization Period
38.3 Register Definitions: FVR
38.4 Register Summary - FVR
39 Temperature Indicator Module
39.1 Module Operation
39.2 Temperature Calculation
39.3 ADC Acquisition Time
39.4 Register Definitions: Temperature Indicator
39.5 Register Summary - Temperature Indicator
40 ADCC - Analog-to-Digital Converter with Computation Module
40.1 ADC Configuration
40.2 ADC Operation
40.3 ADC Acquisition Requirements
40.4 ADC Charge Pump
40.5 Computation Operation
40.6 Capacitive Voltage Divider (CVD) Features
40.7 Register Definitions: ADC Control
40.8 Register Summary - ADC
41 DAC - Digital-to-Analog Converter Module - 8-Bit
41.1 Output Voltage Selection
41.2 Ratiometric Output Level
41.3 Operation During Sleep
41.4 Effects of a Reset
41.5 Register Definitions: DAC Control
41.6 Register Summary - DAC
42 CMP - Comparator Module
42.1 Comparator Overview
42.2 Comparator Control
42.3 Comparator Output Synchronization
42.4 Comparator Hysteresis
42.5 Comparator Interrupt
42.6 Comparator Positive Input Selection
42.7 Comparator Negative Input Selection
42.8 Comparator Response Time
42.9 Analog Input Connection Considerations
42.10 Operation in Sleep Mode
42.11 ADC Auto-Trigger Source
42.12 Register Definitions: Comparator Control
42.13 Register Summary - Comparator
43 ZCD - Zero-Cross Detection Module
43.1 External Resistor Selection
43.2 ZCD Logic Output
43.3 ZCD Logic Polarity
43.4 ZCD Interrupts
43.5 Correction for ZCPINV Offset
43.6 Handling VPEAK Variations
43.7 Operation During Sleep
43.8 Effects of a Reset
43.9 Disabling the ZCD Module
43.10 Register Definitions: ZCD Control
43.11 Register Summary - ZCD
44 Instruction Set Summary
44.1 Standard Instruction Set
44.2 Extended Instruction Set
45 ICSP™ - In-Circuit Serial Programming™
45.1 High-Voltage Programming Entry Mode
45.2 Low-Voltage Programming Entry Mode
45.3 Common Programming Interfaces
46 Register Summary
47 Electrical Specifications
47.1 Absolute Maximum Ratings(†)
47.2 Standard Operating Conditions
47.3 DC Characteristics
47.4 AC Characteristics
48 DC and AC Characteristics Graphs and Tables
48.1 Analog-to-Digital Converter (12-bit) Graphs
48.2 Brown-Out Reset Graphs
48.3 Digital-to-Analog Converter Graphs
48.4 Fixed Voltage Reference Graphs
48.5 HFINTOSC Graphs
48.6 HFINTOSC Wake From Sleep Graphs
48.7 High/Low-Voltage Detect Graphs
48.8 I/O Graphs
48.9 IDD Graphs
48.10 IPD Graphs
48.11 LFINTOSC Graphs
48.12 LFINTOSC Wake From Sleep Graphs
48.13 Low-Power Brown-Out Reset Graphs
48.14 MFINTOSC Graphs
48.15 Power-On Reset Graphs
48.16 Weak Pull-Up Graphs
49 Packaging Information
49.1 Package Details
50 Appendix A: Revision History
Microchip Information
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