TABLE OF CONTENTS
1. INTRODUCTION .......................................................................................................................................5
1.1 PRODUCT DESCRIPTION....................................................................................................................5
1.2 STANDARD FEATURES........................................................................................................................5
1.3 FUNCTIONAL DIAGRAM.....................................................................................................................7
1.4 PHYSICAL LAYOUT FOR SYSTEM........................................................................................................8
2. CN68XX PROCESSOR.............................................................................................................................11
2.1 CN68XX PROCESSOR OVERVIEW ....................................................................................................11
2.1.1 QLM Configuration .................................................................... Error! Bookmark not defined.
2.2 DDR3 DRAM CONTROLLER.............................................................................................................12
2.3 EMMC/SD INTERFACE.....................................................................................................................13
2.4 BOOT BUS.........................................................................................................................................14
2.5 ON-BOARD NETWORK INTERFACES.................................................................................................15
2.6 RGMII MANAGEMENT PORT PHY ...................................................................................................16
2.7 UART INTERFACE ............................................................................................................................17
3. USB 3.0.....................................................................................................................................................18
4. USB 2.0.....................................................................................................................................................19
5. ALTERA CPLD.........................................................................................................................................20
5.1 POWER SEQUENCING CONTROL .....................................................................................................20
5.2 ACCESS INTERFACE .........................................................................................................................21
5.3 I2C INTERFACE ................................................................................................................................21
5.4 SPI INTERFACE.................................................................................................................................21
5.5 DRIVE LED DATA STREAM ...............................................................................................................21
6. CONSOLE PORT......................................................................................................................................22
7. LED CONTROL........................................................................................................................................23
7.1 POWER LED 0...................................................................................................................................23
7.2 POWER LED 1...................................................................................................................................23
7.3 STATUS LED .....................................................................................................................................23
8. BOOT DEVICES.......................................................................................................................................24
8.1 SPI NOR FLASH................................................................................................................................24
8.2 SD CARD ...........................................................................................................................................24
8.3 EMMC...............................................................................................................................................24
8.4 SELECTING BOOT DEVICE...............................................................................................................25
9. I/O MODULES .........................................................................................................................................26
9.1 I/O MODULE ONE.............................................................................................................................27
9.2 I/O MODULE TWO ............................................................................................................................28
10. POWER.................................................................................................................................................29
10.1 POWER CONSUMPTION....................................................................................................................29
10.2 COOLING FAN ..................................................................................................................................30
11. ENCLOSURE........................................................................................................................................31
11.1 PHYSICAL DIMENSIONS ...................................................................................................................31