2
2.0 Host Interface
MUSYCC’s host interface performs the following major functions:
•
Transfers data between the serial interface and shared memory over the
PCI bus
•
•
Bridges system host processors to the devices connected to the EBUS
Stores configuration state information
Figure 2-1 illustrates the host interface block diagram.
Figure 2-1. Host Interface Functional Block Diagram
Host
Interface
Tx Control
Tx Data
Rx Control
Rx Data
Device
Configuration
Registers
Serial
Interface
Interrupts
Clock
Control
Data
PCI
Interface
PCI
Bus
Interrupt
Clock
Control
Data
PCI
Local
Expansion
Bus (EBUS)
Configuration
Space
(Function 0)
Interrupt
PCI
Configuration
Space
(Function 1)
8478_005
100660E
Conexant
2-1
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