Holtek HT68FB240 Speed Flash MCU Manuals

Manuals and User Guides for Holtek HT68FB240 Speed Flash MCU. We have 1 Holtek HT68FB240 Speed Flash MCU manual available for free PDF download: Manual

Holtek HT68FB240 Manual

Holtek HT68FB240 Manual (133 pages)

USB Low Speed Flash MCU

Brand: Holtek | Category: Storage | Size: 2 MB

Table of Contents

Table of Contents
2
Features

6
- CPU Features
  6
- Peripheral Features
  6
General Description

7
Block Diagram

7
Pin Assignment

8
Pin Description

8
Absolute Maximum Ratings

10
D.C. Characteristics

10
Characteristics

11
LVD & LVR Electrical Characteristics

12
Power on Reset Characteristics

12
System Architecture

13
- Clocking and Pipelining
  13
- Program Counter
  14
- Stack
  15
- Arithmetic and Logic Unit - ALU
  15
Flash Program Memory

16
- Structure
  16
- Special Vectors
  16
- Look-Up Table
  16
- In System Programming - ISP
  18
- Flash Memory Read/Write Page Size
  18
- ISP Bootloader
  20
- Flash Program Memory Registers
  20
- In Application Program - IAP
  24
- In Circuit Programming - ICP
  28
- On-Chip Debug Support - OCDS
  29
RAM Data Memory

29
- Structure
  29
Special Function Register Description

31
Oscillator

35
Operating Modes and System Clocks

37
- System Clocks
  37
- System Operation Modes
  38
- Control Register
  40
- Operating Mode Switching
  41
- Standby Current Considerations
  45
- Wake-Up
  45
- Programming Considerations
  46
Watchdog Timer

46
Reset and Initialisation

48
- Reset Overview
  48
- Reset Functions
  49
- Reset Initial Conditions
  53
Input/Output Ports

56
- Pull-High Resistors
  56
- Port Wake-Up
  57
- I/O Port Control Registers
  58
- I/O Pin Structures
  60
- Programming Considerations
  60
Timer Modules - TM

61
- Introduction
  61
- TM Operation
  61
- TM Clock Source
  61
- TM Interrupts
  62
- TM External Pins
  62
- TM Input/Output Pin Control Registers
  62
- Programming Considerations
  64
Compact Type TM - CTM

65
- Compact TM Operation
  65
- Compact Type TM Register Description
  66
- Compact Type TM Operating Modes
  70
- Compare Match Output Mode
  70
- Timer/Counter Mode
  73
- PWM Output Mode
  73
Serial Interface Module - SIM

76
- SPI Interface
  76
- SPI Interface Operation
  76
- SPI Registers
  77
- SPI Communication
  80
- SPI Bus Enable/Disable
  82
- SPI Operation
  82
I 2 C Interface

84
- I 2 C Interface Operation
  84
- I 2 C Registers
  85
- I 2 C Bus Communication
  89
- I 2 C Bus Start Signal
  89
- I 2 C Bus Slave Address
  90
- I 2 C Bus Read/Write Signal
  90
- I 2 C Bus Slave Address Acknowledge Signal
  90
- I 2 C Bus Data and Acknowledge Signal
  90
- I 2 C Time out Operation
  92
Peripheral Clock Output

93
- Peripheral Clock Operation
  93
Pulse Width Modulator

94
- PWM Operation
  94
- 6+2 PWM Mode
  95
- 7+1 PWM Mode
  96
- PWM Output Control
  97
- PWM Programming Example
  97
Interrupts

98
- Interrupt Registers
  98
- Interrupt Operation
  101
- External Interrupt
  103
- USB SIE Interrupt
  103
- USB Setup Token Interrupt
  103
- USB Endpoint 0 in Token Interrupt
  103
- USB Endpoint 0 out Token Interrupt
  104
- Serial Interface Module Interrupt
  104
- LVD Interrupt
  104
- Multi-Function Interrupt
  104
- TM Interrupts
  105
- Interrupt Wake-Up Function
  105
- Programming Considerations
  105
Low Voltage Detector - LVD

106
- LVD Register
  106
- LVD Operation
  107
USB Interface

108
- Power Plane
  108
- USB Suspend Wake-Up Remote Wake-Up
  108
- USB Interface Operation
  109
- USB Interface Registers
  109
Application Circuits

116
Instruction Set

117
- Introduction
  117
- Instruction Timing
  117
- Moving and Transferring Data
  117
- Arithmetic Operations
  117
- Logical and Rotate Operation
  118
- Branches and Control Transfer
  118
- Bit Operations
  118
- Other Operations
  118
Instruction Set Summary

119
Instruction Definition

121
Package Information

130
- SAW Type 46-Pin QFN (6.5Mm×4.5Mm) Outline Dimensions
  131
- 48-Pin LQFP (7Mm×7Mm) Outline Dimensions
  132

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