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

7.4.3.1 Device Read/Write Lock

The TPLD2001 implements lock features that enables device read-back protection for secure applications and prevents an accidental or unintended write to the TPLD2001 registers. There are three bits in the OTP that allows the user to define rules for reading and writing through the serial communications interface:

  • Configuration register (CFG) read lock: the CFG read lock, if set, will block all read commands of the configuration registers through the serial communications interface and respond with 0's.

  • User register (USER) lock: the USER lock consists of two bits and, depending on bit setting, will block write commands to the user register space through the serial communications interface to specific register addresses and any changes requested will be denied (no changes will be made to the configuration registers).

Registers & Access type

Lock bits

CFG RD lock = 0b0

USER lock = 0b00

CFG RD lock = 0b0

USER lock = 0b01

CFG RD lock = 0b0

USER lock = 0b10

CFG RD lock = 0b0

USER lock = 0b11

CFG RD lock = 0b1

USER lock = 0bXX

Device ID

(0x000 - 0x003)

R

R

R

R

R

Program ID

(0x004 - 0x007)

R

R

R

R

R

Counter COUNT

(0x010 - 0x01F)

R

R

R

R

—

Counter DATA

(0x020 - 0x02F)

R/W

R/W

R

R

—

Watchdog Timer DATA

(0x030 - 0x031)

R/W

R/W

R

R

—

Watchdog Timer Status

(0x032)

R

R

R

R

R

Pattern Generator

(0x040 - 0x041)

R/W

R/W

R

R

—

State Machine

(0x050 - 0x05F)

R/W

R

R/W

R

—

Voltage Reference select for Analog Comparator

(0x070 - 0x07F)

R/W

R

R

R/W

—

Virtual Input

(0x0E0)

R/W

R/W

R/W

R/W

R/W

Virtual Output

(0x0E1)

R

R

R

R

R

CRC Status

(0x0FE)

R

R

R

R

R

Configuration Registers

(0x200 - 0x3FF)

R

R

R

R

—

Any write commands that come to the device via the serial communications interface that are not blocked, based on the protection bits, will change the contents of the configuration register that mirror the OTP bits. These write commands will not change the OTP bits themselves, and a POR event will restore the register bits to original programmed contents of the OTP.