CN8478/CN8474A/CN8472A/CN8471A
4.0 Serial Interface
Multichannel Synchronous Communications Controller (MUSYCC™)
4.6 Serial Port Mapping
4.6 Serial Port Mapping
MUSYCC contains up to eight serial ports with each port associated to a channel
group processor that supports up to 32 logical bidirectional channels.
To manage more than 32 logical channels on a single port, the port
configuration options provided in the PORTMAP bit field (as described in
Table 5-6, Global Configuration Descriptor) can be programmed to route the
signal on one port to multiple channel groups. Figure 4-5 illustrates the serial port
mapping options.
Figure 4-5. Serial Port Mapping Options
PORTMAP = 0
Channel Group Processor 0
Channel Group Processor 1
Channel Group Processor 2
Channel Group Processor 3
Channel Group Processor 4
Channel Group Processor 5
Channel Group Processor 6
Channel Group Processor 7
Serial Port 0
Serial Port 1
Serial Port 2
Serial Port 3
Serial Port 4
Serial Port 5
Serial Port 6
Serial Port 7
PORTMAP = 1
Channel Group Processor 0
Channel Group Processor 1
Channel Group Processor 2
Channel Group Processor 3
Channel Group Processor 4
Channel Group Processor 5
Channel Group Processor 6
Channel Group Processor 7
Serial Port 0
Serial Port 1
Serial Port 2
Serial Port 3
PORTMAP = 2
Channel Group Processor 0
Channel Group Processor 1
Channel Group Processor 2
Channel Group Processor 3
Channel Group Processor 4
Channel Group Processor 5
Channel Group Processor 6
Channel Group Processor 7
Serial Port 0
Serial Port 1
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