SCPS286 July   2025 TPLD2001

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Supply Current Characteristics
    7. 5.7 Switching Characteristics
    8. 5.8 I2C Bus Timing Requirements
    9. 5.9 SPI Timing Requirements
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  I/O Pins
        1. 7.3.1.1 Input Modes
        2. 7.3.1.2 Output Modes
        3. 7.3.1.3 Pull-Up or Pull-Down Resistors
      2. 7.3.2  Connection Mux
      3. 7.3.3  Configurable Use Logic Blocks
        1. 7.3.3.1 2-Bit LUT or D Flip-Flop/Latch macro-cell
          1. 7.3.3.1.1 2-Bit LUT
          2. 7.3.3.1.2 D Flip-Flop/Latch
        2. 7.3.3.2 2-Bit LUT or Pattern Generator macro-cell
          1. 7.3.3.2.1 2-Bit LUT
          2. 7.3.3.2.2 Pattern Generator
        3. 7.3.3.3 3-Bit LUT or D Flip-Flop/Latch with Reset/Set macro-cell
          1. 7.3.3.3.1 3-Bit LUT
          2. 7.3.3.3.2 D Flip-Flop/Latch with Reset/Set
        4. 7.3.3.4 3-Bit LUT or D Flip-Flop/Latch or Shift Register macro-cell
          1. 7.3.3.4.1 3-Bit LUT
          2. 7.3.3.4.2 D Flip-Flop/Latch with Reset/Set
          3. 7.3.3.4.3 8-Bit Shift Register
        5. 7.3.3.5 4-Bit LUT or D Flip-Flop/Latch with Reset/Set macro-cell
          1. 7.3.3.5.1 4-Bit LUT
          2. 7.3.3.5.2 D Flip-Flop/Latch with Reset/Set
      4. 7.3.4  Configurable Logic and Timing blocks
        1. 7.3.4.1 3-Bit LUT
        2. 7.3.4.2 D Flip-Flop/Latch with Reset/Set
        3. 7.3.4.3 Counters/Delay Generators (CNT/DLY)
          1. 7.3.4.3.1 Delay Mode
          2. 7.3.4.3.2 Reset Counter Mode
          3. 7.3.4.3.3 One-Shot Mode
          4. 7.3.4.3.4 Frequency Comparator Mode
          5. 7.3.4.3.5 Edge Detector Mode
          6. 7.3.4.3.6 Delayed Edge Detector Mode
        4. 7.3.4.4 LUT/DFF + CNT modes
      5. 7.3.5  Programmable Deglitch Filter or Edge Detector
      6. 7.3.6  Deglitch Filter or Edge Detector
      7. 7.3.7  State Machine (SM)
        1. 7.3.7.1 State Machine Inputs
        2. 7.3.7.2 State Machine Outputs
        3. 7.3.7.3 Configuring the State Machine
        4. 7.3.7.4 State Machine Timing Considerations
      8. 7.3.8  8-Bit Counters/Delay Generators/Finite State Machines
      9. 7.3.9  PWM Generators
      10. 7.3.10 Watchdog Timer
      11. 7.3.11 Analog Comparators
        1. 7.3.11.1 Discrete Analog Comparator (ACMP)
        2. 7.3.11.2 Multi-channel Analog Comparator (McACMP)
      12. 7.3.12 Voltage Reference (VREF)
      13. 7.3.13 Analog Temperature Sensor (TS)
      14. 7.3.14 Analog Multiplexer (AMUX)
      15. 7.3.15 Oscillators
        1. 7.3.15.1 2kHz Fixed Frequency Oscillator
        2. 7.3.15.2 2MHz Fixed Frequency Oscillator
        3. 7.3.15.3 25MHz Fixed Frequency Oscillator
        4. 7.3.15.4 Oscillator Power Modes
      16. 7.3.16 Serial Communications
        1. 7.3.16.1 I2C Mode
        2. 7.3.16.2 SPI Mode
        3. 7.3.16.3 Virtual I/Os
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-On Reset
      2. 7.4.2 Power Supply Control Modes
      3. 7.4.3 Protection Features
        1. 7.4.3.1 Device Read/Write Lock
        2. 7.4.3.2 OTP Cyclic Redundancy Check (CRC)
      4. 7.4.4 Programming
        1. 7.4.4.1 Selectable I2C/SPI Interface
        2. 7.4.4.2 One-Time Programmable Memory (OTP)
        3. 7.4.4.3 Intel HEX File Format
        4. 7.4.4.4 TPLD2001 Registers
          1. 7.4.4.4.1 TPLD2001_User Registers
          2. 7.4.4.4.2 TPLD2001_Cfg_0 Registers
          3. 7.4.4.4.3 TPLD2001_Cfg_1 Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Power Considerations
        2. 8.2.1.2 Input Considerations
        3. 8.2.1.3 Output Considerations
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information
    2. 11.2 Mechanical Data

7.3.4.3 Counters/Delay Generators (CNT/DLY)

The TPLD2001 has six 8-bit and two 16-bit counters/delay generators, supporting a maximum DATA value of 255 and 65535, respectively. The counter count can be read and the data can be updated in-system using the User Registers. When reading the current count, two consecutive read transactions are required for accurate data read. It is recommended to put the counter in a reset state when updating the counter data registers to prevent glitches during loading of the data. Two clock pulses are required to release the counter from reset after writing new counter data.

For further flexibility, the clock source for each of these macro-cells can be configured as the internal oscillator (OSC0, OSC1, or OSC2), a divided clock derived from an oscillator (OSC0/8, /64, /512, /4096, /32768, /262144, or OSC1/8, /64, /512, or OSC2/4), or an external clock source coming from the connection mux. Note that the counter/delay macro-cell is rising edge triggered, that is the counter will decrement on the rising edge of the CLK input.

Note:

For unused counter macro-cells, set the clock selection (CLK_SEL) to External CLK from CMX to reduce excess current draw.

Users may use the counter/delay generator macro-cell in the following modes: delay, one-shot, frequency comparator, counter, edge detector, delayed edge detector.