用户手册 — Cypress CY14B101P

目录

• Features

  1
• Overview

  1
• Logic Block Diagram

  1
• Pinouts

  2
• Device Operation

  3
  • SRAM Write

    3
  • SRAM Read

    3
  • STORE Operation

    3
  • AutoStore Operation

    3
  • Software Store Operation

    4
  • Hardware Store and HSB pin Operation

    4
  • RECALL Operation

    4
  • Hardware Recall (Power Up)

    4
  • Software Recall

    4
  • Disabling and Enabling AutoStore

    4
• Serial Peripheral Interface

  4
  • SPI Overview

    4
    • SPI Master

      5
    • SPI Slave

      5
    • Chip Select (CS)

      5
    • Serial Clock (SCK)

      5
    • Data Transmission SI/SO

      5
    • Most Significant Bit (MSB)

      5
    • Serial Opcode

      5
    • Invalid Opcode

      5
    • Status Register

      5
• SPI Modes

  6
• SPI Operating Features

  7
  • Power Up

    7
  • Power On Reset

    7
  • Power Down

    7
  • Active Power and Standby Power Modes

    7
• SPI Functional Description

  7
• Status Register

  8
  • Read Status Register (RDSR) Instruction

    8
  • Write Status Register (WRSR) Instruction

    8
• Write Protection and Block Protection

  9
  • Write Enable (WREN) Instruction

    9
  • Write Disable (WRDI) Instruction

    9
  • Block Protection

    9
  • Hardware Write Protection (WP Pin)

    9
• Memory Access

  10
  • Read Sequence (READ)

    10
  • Write Sequence (WRITE)

    10
  • READ RTC (RDRTC) Instruction

    11
  • WRITE RTC (WRTC) Instruction

    12
  • Software Store (STORE)

    12
  • Software Recall (RECALL)

    13
  • AutoStore Disable (ASDISB)

    13
  • AutoStore Enable (ASENB)

    13
  • HOLD Pin Operation

    13
• Real Time Clock Operation

  14
  • nvTIME Operation

    14
  • Clock Operations

    14
  • Reading the Clock

    14
  • Setting the Clock

    14
  • Backup Power

    14
  • Stopping and Starting the Oscillator

    14
  • Calibrating the Clock

    15
  • Alarm

    15
  • Watchdog Timer

    15
  • Power Monitor

    16
  • Interrupts

    16
  • Flags Register

    16
  • Accessing the Real Time Clock through SPI

    17
• Maximum Ratings

  22
• DC Electrical Characteristics

  22
• Data Retention and Endurance

  23
• Capacitance

  23
• Thermal Resistance

  23
• AC Test Conditions

  23
• AC Switching Characteristics

  24
• AutoStore or Power Up RECALL

  26
• Switching Waveforms

  26
• Software Controlled STORE/RECALL Cycles

  27
• Hardware STORE Cycle

  28
• Ordering Information

  29
• Part Numbering Nomenclature

  29
• Package Diagrams

  30
• Sales, Solutions, and Legal Information

  32
  • Worldwide Sales and Design Support

    32
  • Products

    32
  • PSoC Solutions

    32