SPRACK9 February   2019 AM1705 , AM1707 , AM1806 , AM1808 , OMAP-L132 , OMAP-L137 , OMAP-L138 , TMS320C6742 , TMS320C6745 , TMS320C6746 , TMS320C6747 , TMS320C6748

 

  1.   OMAP-L13x/C674x/AM1x schematic review guidelines
    1.     Trademarks
    2. 1 Introduction
    3. 2 Recommendations Specific to OMAP-L1x/TMS320C674x/AM1x
      1. 2.1 EVM vs Data Sheet
      2. 2.2 Before You Begin
        1. 2.2.1 Documentation
        2. 2.2.2 Pinout
      3. 2.3 Critical Connections
        1. 2.3.1 Decoupling capacitors
        2. 2.3.2 Power
        3. 2.3.3 Ground
        4. 2.3.4 Clocking
        5. 2.3.5 Reset
        6. 2.3.6 Boot
        7. 2.3.7 Pin multiplexing
        8. 2.3.8 Debug
      4. 2.4 Peripherals
        1. 2.4.1 UART
        2. 2.4.2 EMAC
        3. 2.4.3 MMC/SD
        4. 2.4.4 EMIF
          1. 2.4.4.1 NAND
          2. 2.4.4.2 NOR
          3. 2.4.4.3 DDR2/mDDR
        5. 2.4.5 SPI
        6. 2.4.6 I2C
        7. 2.4.7 McASP
          1. 2.4.7.1 Audio
        8. 2.4.8 USB
          1. 2.4.8.1 USB0 (USB 2.0 OTG)
          2. 2.4.8.2 USB1 (USB 1.1 OHCI)
          3. 2.4.8.3 Unused USB pins
          4. 2.4.8.4 USB Board Design Guidelines
            1. 2.4.8.4.1 Cautionary note - USB PHY off while host is still powered on
        9. 2.4.9 Other
          1. 2.4.9.1 Signal Visibility
          2. 2.4.9.2 Voltage Level Changes
          3. 2.4.9.3 Signal Terminations
          4. 2.4.9.4 Ground Symbols
          5. 2.4.9.5 Power Symbols
    4. 3 BGA PCB Design
    5. 4 Power Management Solutions
    6. 5 References
  2.   A XDS Connector Design Checklist
    1.     A.1 XDS Connector Design
  3.   B Connecting NOR Flash to OMAP-L138
    1.     B.1 Connecting Memory Devices <32 MB
    2.     B.2 Connecting Memory Devices >32 MB

Connecting Memory Devices >32 MB

The device memory map was designed such that each chip select could address 32 MB of external memory. In order to go beyond 32 MB, glue logic and additional software configuration is required.

Fig5-OMAPL138-NOR-16bit.gifFigure 6. Hardware Connection for 32 M x 16 Device
Fig6-OMAPL138-NOR-8bit.gifFigure 7. Hardware Connection for 64 M x 8 Device
Fig7-OMAP-L138_EMIFA_2.gifFigure 8. Hardware Connection for 64 M x 16 Device