Interface Masters Technologies Inc. Confidential & Proprietary
TAHOE 8824 User Guide
Rev: 01
09/18/2017 Page 2 OF 34
CONTENTS
1. INTRODUCTION ............................................................................................................ 6
1.1 Product Description ..................................................................................................... 6
1.2 Standard Features ........................................................................................................ 6
1.3 Functional Diagram ..................................................................................................... 7
1.4 Physical Layout for System .......................................................................................... 8
2. MAJOR COMPONENTS ............................................................................................... 10
2.1 CN82xx/CN83xx – Processor ..................................................................................... 10
2.2 DDR4 DRAM Controller ............................................................................................ 11
2.3 eMMC ......................................................................................................................... 12
2.4 SPI .............................................................................................................................. 13
2.5 SERDES - QLMs/DLMs ............................................................................................. 14
2.6 USB 3.0 ....................................................................................................................... 15
2.7 UART Interface ........................................................................................................... 16
2.8 I2C Interface ............................................................................................................... 17
2.9 SMI interface .............................................................................................................. 18
2.10 P Bus interface ......................................................................................................... 19
3 CPLD ................................................................................................................................ 20
3.1 Access Interface .......................................................................................................... 20
3.2 LED Control ............................................................................................................... 20
3.3 Boot Strap ................................................................................................................... 20
3.4 Boot Devices ............................................................................................................... 21
3.4.1 SPI NOR Flash ..................................................................................................... 21
3.4.2 SD card ................................................................................................................ 21
3.4.3 eMMC ................................................................................................................... 21
3.5 Selecting Boot Device ................................................................................................. 21
4 ETHERNET PHYS ............................................................................................................ 22
