RM0082
RS_Telecom IP
Doc ID 018672 Rev 1
765/844
34 RS_Telecom
IP
This section describes the telecom module.
34.1 Overview
Within the Reconfigurable Array Subsystem, SPEAr300 provides a Telecom IP which has an
AMBA 2 compatible interface and supports various telephony, audio applications.
34.2 Main
features
●
Voice transmission for normal telecommunications (TDM Interface).
●
Voice transmission for high quality VoIP application (I2S Interface).
●
TDM interface with 512 timeslots and expansion of 16 bufferization channels.
●
32ms bufferization for 16 channels (of 4bytes each)
●
8 programmable sychronization signals for codecs
●
18 GPIOs for SLIC management
●
Supports master and slave mode of operation
●
Programmable clock and synchronization signals generation in master mode
●
Clock and synchornization signals recovery in slave mode
●
Multiple clock source options with master and slave mode functionality
●
Expansion of SPI and I2C interface lines in fixed part of SPEAr300
●
Interrupt control management
●
1 bit DAC
●
Compatible to AMBA2 (Advanced Microcontroller Bus Architecture)
Note:
All or some of these features are available in different RAS configuration modes (see
).
34.3 Pin
list
This section describes the functionality of the pin.
lists all the input/output signals of the telecom IP.
Table 698.
Telecom block pin signals
Signal
Direction
Description
TDM CLK
INOUT
TDM Clock
TDM DIN
IN
TDM Input
TDM DOUT
OUT
TDM Output
I2S CLK
INOUT
I2S Clock
I2S LRCK
INOUT
I2S Synchronizer signal
I2S DIN
IN
I2S Input