CN8478 Datasheet, PDF (16/221 Pages) Conexant Systems, Inc – Multichannel Synchronous Communications Controller (MUSYCC)

1.0 System Description
CN8478/CN8474A/CN8472A/CN8471A
Multichannel Synchronous Communications Controller (MUSYCC™)
MUSYCC also provides an on-device, 32-bit local expansion bus (EBUS) controller which allows a host
processor to access local memory and physical interface devices directly through MUSYCC over the PCI using
configurable memory mapping features.
MUSYCC manages buffer memory for each active data channel with common list-processing structures.
The on-device features allow data transmission between buffer memory and the serial interfaces with minimum
host processor intervention. This allows the host processor to concentrate on managing the higher layers of the
protocol stack.
Figures 1-2 and 1-3 illustrate detailed system block diagrams and a sample application.
1-2
Conexant
100660E