cx28365 Mindspeed Technologies, cx28365 Datasheet - Page 98

• Manufacturer Part Number: cx28365
• Description: X12, X6, X4 T3/e3 Framer And Atm Cell Transmission Convergence Sublayer Processor
• Manufacturer: Mindspeed Technologies

Functional Description
2.4.2
Figure 2-18. Input/Output Ports Application Example (LIU Control)
2-60
CX28333
T3/E3
LIU-1
Input/Output Ports
ENDICDIS
The CX2836x provides 48 multi-purpose input/output pins arranged as four 12-bit
ports. InPort1 and InPort2 are 12-bit bidirectional ports and can be used as general
purpose inputs or as framer RxSync and TxSync outputs. OutPort1 and Outport2 are
12-bit output ports. OutPort1 can be used as general purpose output pins or as framer
or cell processor status outputs. OutPort2 can be used as general purpose output pins
or as chip select outputs between external framers and the cell processor when the
internal framer is bypassed.
Input/Output ports to control and monitor external LIUs. These four ports are 12-bits
wide regardless of the device (CX28365, CX28366, or CX28364). RxSync and
TxSync, however, are applicable only for ports which exist.
E3MODE
RLOOP
LLOOP
REQH
RLOS
TLOS
Preliminary Information/Mindspeed Proprietary and Confidential
GPD
XOE
LBO
Mindspeed Technologies™
OutPort2 [0]
InPort1 [0]
InPort2 [0]
Figure 2-18
illustrates an application example using the
InPort1 [11:0]
InPort2 [11:0]
OutPort2 [11:0]
Outport1 [0]
Outport1 [1]
Outport1 [2]
Outport1 [3]
Outport1 [4]
Outport1 [5]
Outport1 [6]
CX28365
Separate Signals
to 12 LIUs
Common to all
12 LIUs
CX28365/6/4 Data Sheet
500028C
500028_034