Interface Masters Technologies Inc. Confidential & Proprietary
TABLE OF CONTENTS
1 INTRODUCTION ............................................................................................................... 6
1.1 STANDARD FEATURES................................................................................................ 6
1.2 FUNCTIONAL DIAGRAM................................................................................................... 7
1.3 PHYSICAL LAYOUT FOR SYSTEM....................................................................................... 9
2 MAJOR COMPONENTS............................................................................................... 12
2.1 CN78XX PROCESSOR.............................................................................................. 12
2.1.1 CN78XX Processor Overview ........................................................................... 12
2.1.2 DDR (LMC)....................................................................................................... 13
2.1.3 SPI ..................................................................................................................... 14
2.1.4 eMMC/SD.......................................................................................................... 15
2.1.5 Boot Bus............................................................................................................. 16
2.1.6 SERDES (QLMs)............................................................................................... 17
2.1.7 I2C (TWSI)......................................................................................................... 18
2.1.8 UART................................................................................................................. 19
2.1.9 USB 3.0.............................................................................................................. 20
2.1.10 MDIO (SMI)................................................................................................... 21
2.1.11 MANAGEMENT PORT ................................................................................................ 22
2.2 CPLD .................................................................................................................... 24
2.2.1 CPLD Overview ............................................................................................... 24
2.2.2 Power Sequencing Control................................................................................ 25
2.2.3 Access Interface................................................................................................. 25
2.2.4 LED Control...................................................................................................... 26
2.2.5 Boot Devices...................................................................................................... 27
2.3.5 Selecting Boot Device........................................................................................ 27
2.4 CS4318 –QUAD RXAUI TO SFI PHY..................................................................... 28
2.5 VSC8221 –SINGLE PORT SGMII TO 1GBASE-T PHY ............................................ 29
2.6 PEX8724 –PCI-E GEN3SWITCH............................................................................ 30
2.7 PCI-E M.2 SSD...................................................................................................... 31
2.8 SERIAL INTERFACE .................................................................................................. 31
3 I2C PERIPHERALS...................................................................................................... 32
3.1 I2C BUS 0PERIPHERALS............................................................................................... 32
3.1.1 DDR4 SPD......................................................................................................... 32
3.2 I2C BUS 1PERIPHERALS ......................................................................................... 33
3.2.2 ADM1032ARZ - Temperature Sensor ............................................................... 33
3.2.3 MCP7940N - Real Time Clock.......................................................................... 33
3.2.4 EEPROM........................................................................................................... 33
4 I/O MODULES.............................................................................................................. 34
