CS181002-CQR Cirrus Logic Inc, CS181002-CQR Datasheet - Page 8

• Manufacturer Part Number: CS181002-CQR
• Description: Audio DSPs IC CobraNet Audio Networking Processor
• Manufacturer: Cirrus Logic Inc

Specifications of CS181002-CQR

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CobraNet Hardware User’s Manual
Hardware
3.0 Hardware
8
Audio
Serial
Clock
Figure 2
Flash memory holds the CobraNet firmware and management interface variable settings.
The CS1810xx or CS4961xx network processor is the heart of the CobraNet interface. It
implements the network protocol stacks and performs the synchronous-to-isochronous
and isochronous-to-synchronous conversions. The network processor has a role in
sample clock regeneration and performs all interactions with the host system.
The sample clock is generated by a voltage-controlled crystal oscillator (VCXO)
controlled by the network processor. The VCXO frequency is carefully adjusted to achieve
lock with the network clock.
The Ethernet controller is a standard interface chip that implements the 100-Mbit Fast
Ethernet standard. As per Ethernet requirements the interface is transformer isolated.
Host
shows a high-level view of the CobraNet CM-2 interface hardware architecture.
Control
Figure 2. CobraNet Interface Hardware Block Diagram
VCXO
CS1810xx/
CS4961xx
Clock
©
Copyright 2005 Cirrus Logic, Inc.
Memory
Flash
Controller
Ethernet
CobraNet CM-2
Magnetics
Ethernet
Module
DS651UM23
Version 2.3