Interface Masters Technologies Inc. Confidential & Proprietary
TAHOE 8824 User Guide
Rev: 01
09/18/2017 Page 10 OF 34
2.
Major Components
2.1 CN82xx/CN83xx – Processor
The main CPU of the TAHOE 8824 is CN82xx/CN83xx, which is a multicore (up
to 24) CNARM64
TM
III processor that’s part of the Octeon TX family. The CN82xx has
one 72-bit DRAM controllers that can support DDR4, while the CN83xx has two
controllers. In addition, both CN82xx and CN83xx has several SERDES that can be
configured as various Ethernet interfaces, SATA and PCI-e.
The following is a list of interfaces that is provided by the CPU:
➢
72-bit wide DDR4 module
➢
eMMC Interface
➢
SPI Interface
➢
QLM SERDES blocks
➢
Three DLM SERDES blocks
➢
Two USB 3.0 host ports
➢
Two UART Interface
➢
Two TWSI bus (I2C)
➢
Two SMI/MDIO bus
➢
PBus (GPIOs)