JAJSE44B May   2017  – April 2018 IWR1642

PRODUCTION DATA.  

  1. 1 デバイスの概要
    1. 1.1 特長
    2. 1.2 アプリケーション
    3. 1.3 概要
    4. 1.4 機能ブロック図
  2. 2 改訂履歴
  3. 3 Device Comparison
    1. 3.1 Related Products
  4. 4 Terminal Configuration and Functions
    1. 4.1 Pin Diagram
    2. 4.2 Pin Attributes
      1. Table 4-3 PAD IO Register Bit Descriptions
    3. 4.3 Signal Descriptions
      1. Table 4-4 Signal Descriptions - Digital
      2. Table 4-5 Signal Descriptions - Analog
    4. 4.4 Pin Multiplexing
  5. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Power-On Hours (POH)
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Power Supply Specifications
    6. 5.6  Power Consumption Summary
    7. 5.7  RF Specification
    8. 5.8  CPU Specifications
    9. 5.9  Thermal Resistance Characteristics for FCBGA Package [ABL0161]
    10. 5.10 Timing and Switching Characteristics
      1. 5.10.1  Power Supply Sequencing and Reset Timing
      2. 5.10.2  Input Clocks and Oscillators
        1. 5.10.2.1 Clock Specifications
      3. 5.10.3  Multibuffered / Standard Serial Peripheral Interface (MibSPI)
        1. 5.10.3.1 Peripheral Description
        2. 5.10.3.2 MibSPI Transmit and Receive RAM Organization
          1. Table 5-7  SPI Timing Conditions
          2. Table 5-8  SPI Master Mode Switching Parameters (CLOCK PHASE = 0, SPICLK = output, SPISIMO = output, and SPISOMI = input)
          3. Table 5-9  SPI Master Mode Input Timing Requirements (CLOCK PHASE = 0, SPICLK = output, SPISIMO = output, and SPISOMI = input)
          4. Table 5-10 SPI Master Mode Switching Parameters (CLOCK PHASE = 1, SPICLK = output, SPISIMO = output, and SPISOMI = input)
          5. Table 5-11 SPI Master Mode Input Requirements (CLOCK PHASE = 1, SPICLK = output, SPISIMO = output, and SPISOMI = input)
        3. 5.10.3.3 SPI Slave Mode I/O Timings
          1. Table 5-12 SPI Slave Mode Switching Parameters (SPICLK = input, SPISIMO = input, and SPISOMI = output)
          2. Table 5-13 SPI Slave Mode Timing Requirements (SPICLK = input, SPISIMO = input, and SPISOMI = output)
        4. 5.10.3.4 Typical Interface Protocol Diagram (Slave Mode)
      4. 5.10.4  LVDS Interface Configuration
        1. 5.10.4.1 LVDS Interface Timings
      5. 5.10.5  General-Purpose Input/Output
        1. Table 5-15 Switching Characteristics for Output Timing versus Load Capacitance (CL)
      6. 5.10.6  Controller Area Network Interface (DCAN)
        1. Table 5-16 Dynamic Characteristics for the DCANx TX and RX Pins
      7. 5.10.7  Serial Communication Interface (SCI)
        1. Table 5-17 SCI Timing Requirements
      8. 5.10.8  Inter-Integrated Circuit Interface (I2C)
        1. Table 5-18 I2C Timing Requirements
      9. 5.10.9  Quad Serial Peripheral Interface (QSPI)
        1. Table 5-19 QSPI Timing Conditions
        2. Table 5-20 Timing Requirements for QSPI Input (Read) Timings
        3. Table 5-21 QSPI Switching Characteristics
      10. 5.10.10 ETM Trace Interface
        1. Table 5-22 ETMTRACE Timing Conditions
        2. Table 5-23 ETM TRACE Switching Characteristics
      11. 5.10.11 Data Modification Module (DMM)
        1. Table 5-24 DMM Timing Requirements
      12. 5.10.12 JTAG Interface
        1. Table 5-25 JTAG Timing Conditions
        2. Table 5-26 Timing Requirements for IEEE 1149.1 JTAG
        3. Table 5-27 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
  6. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Subsystems
      1. 6.3.1 RF and Analog Subsystem
        1. 6.3.1.1 Clock Subsystem
        2. 6.3.1.2 Transmit Subsystem
        3. 6.3.1.3 Receive Subsystem
      2. 6.3.2 Processor Subsystem
      3. 6.3.3 Host Interface
      4. 6.3.4 Master Subsystem Cortex-R4F Memory Map
      5. 6.3.5 DSP Subsystem Memory Map
    4. 6.4 Other Subsystems
      1. 6.4.1 ADC Channels (Service) for User Application
        1. Table 6-3 GP-ADC Parameter
  7. 7 Monitoring and Diagnostics
    1. 7.1 Monitoring and Diagnostic Mechanisms
      1. 7.1.1 Error Signaling Module
  8. 8 Applications, Implementation, and Layout
    1. 8.1 Application Information
    2. 8.2 Reference Schematic
    3. 8.3 Layout
      1. 8.3.1 Layout Guidelines
      2. 8.3.2 Layout Example
      3. 8.3.3 Stackup Details
  9. 9 Device and Documentation Support
    1. 9.1 Device Nomenclature
    2. 9.2 Tools and Software
    3. 9.3 Documentation Support
    4. 9.4 Community Resources
    5. 9.5 商標
    6. 9.6 静電気放電に関する注意事項
    7. 9.7 Export Control Notice
    8. 9.8 Glossary
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Packaging Information

Table 5-18 I2C Timing Requirements(1)

STANDARD MODE FAST MODE UNIT
MIN MAX MIN MAX
tc(SCL) Cycle time, SCL 10 2.5 μs
tsu(SCLH-SDAL) Setup time, SCL high before SDA low
(for a repeated START condition)		 4.7 0.6 μs
th(SCLL-SDAL) Hold time, SCL low after SDA low
(for a START and a repeated START condition)		 4 0.6 μs
tw(SCLL) Pulse duration, SCL low 4.7 1.3 μs
tw(SCLH) Pulse duration, SCL high 4 0.6 μs
tsu(SDA-SCLH) Setup time, SDA valid before SCL high 250 100 μs
th(SCLL-SDA) Hold time, SDA valid after SCL low 0 3.45(1) 0 0.9 μs
tw(SDAH) Pulse duration, SDA high between STOP and START conditions 4.7 1.3 μs
tsu(SCLH-SDAH) Setup time, SCL high before SDA high
(for STOP condition)		 4 0.6 μs
tw(SP) Pulse duration, spike (must be suppressed) 0 50 ns
Cb(2)(3) Capacitive load for each bus line 400 400 pF
(1) The I2C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered down.
(2) The maximum th(SDA-SCLL) for I2C bus devices has only to be met if the device does not stretch the low period (tw(SCLL)) of the SCL signal.
(3) Cb = total capacitance of one bus line in pF. If mixed with fast-mode devices, faster fall-times are allowed.
IWR1642 i2c_timing_pns160.gifFigure 5-13 I2C Timing Diagram

NOTE

  • A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL signal) to bridge the undefined region of the falling edge of SCL.
  • The maximum th(SDA-SCLL) has only to be met if the device does not stretch the LOW period (tw(SCLL)) of the SCL signal. E.A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement tsu(SDA-SCLH) ≥ 250 ns must then be met. This will automatically be the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line tr max + tsu(SDA-SCLH).