1Introduction................................................................................................................... 6
1.1 Overview............................................................................................................................. 6
1.2 Additional Documents .......................................................................................................... 6
1.2.1 Layout Design Guide.................................................................................................6
1.2.2 Colibri Module Datasheets.........................................................................................6
1.2.3 Toradex Developer Center.........................................................................................6
1.2.4 Colibri Evaluation Board Schematics ..........................................................................6
1.2.5 Pinout Designer ........................................................................................................7
1.3 Abbreviations....................................................................................................................... 7
2Interfaces...................................................................................................................... 9
2.1 Architecture......................................................................................................................... 9
2.1.1 Standard Interfaces...................................................................................................9
2.1.2 Interfaces on Alternative Functions.............................................................................9
2.1.3 Pin Numbering ........................................................................................................10
2.1.4 Pin Reset State.......................................................................................................10
2.2 Ethernet............................................................................................................................ 11
2.2.1 Ethernet Signals......................................................................................................11
2.2.2 Reference Schematics.............................................................................................11
2.2.3 Unused Ethernet Signals Termination.......................................................................12
2.3 USB.................................................................................................................................. 12
2.3.1 USB Signals ...........................................................................................................12
2.3.2 Reference Schematics.............................................................................................13
2.3.3 Unused USB Signal Termination ..............................................................................14
2.4 Parallel RGB LCD Interface................................................................................................ 14
2.4.1 Parallel RGB LCD Signals .......................................................................................15
2.4.2 Reference Schematics.............................................................................................15
2.4.3 Unused Parallel RGB Interface Signal Termination....................................................18
2.5 HDMI/DVI.......................................................................................................................... 18
2.5.1 HDMI/DVI Signals ...................................................................................................19
2.5.2 Reference Schematics.............................................................................................19
2.5.3 Unused HDMI/DVI Signal Termination......................................................................21
2.6 Analog VGA ...................................................................................................................... 22
2.6.1 VGA Signals ...........................................................................................................22
2.6.2 Reference Schematics.............................................................................................22
2.6.3 Unused VGA Interface Signal Termination................................................................23
2.7 Parallel Camera Interface................................................................................................... 23
2.7.1 Parallel Camera Signals ..........................................................................................23
2.7.2 Unused Parallel Camera Interface Signal Termination ...............................................24
2.8 SD/MMC/SDIO .................................................................................................................. 24
2.8.1 SD/MMC/SDIO Signals............................................................................................24
2.8.2 Reference Schematics.............................................................................................25
2.8.3 Unused SD/MMC/SDIO Interface Signal Termination.................................................25
2.9 I2C.................................................................................................................................... 25
2.9.1 I2C Signals..............................................................................................................25
2.9.2 Real-Time Clock (RTC) recommendation..................................................................25
2.9.3 Unused I2C Signal Termination.................................................................................26
2.10 UART................................................................................................................................ 26
2.10.1 UART Signals......................................................................................................26
2.10.2 Reference Schematics .........................................................................................27
2.10.3 Unused UART Signal Termination.........................................................................28
2.11 SPI ................................................................................................................................... 29
2.11.1 SPI Signals..........................................................................................................29
2.11.2 Unused SPI Signal Termination ............................................................................29
2.12 CAN.................................................................................................................................. 29
2.12.1 Reference Schematics .........................................................................................29
