Before powering up the T1040RDB board, configure the serial port of the attached
computer with the following values:
• Data rate: 115200 bit/s
• Number of data bits: 8
• Parity: None
• Number of stop bits: 1
• Flow control: Hardware/None
2.15 SLIC/SLAC and TDM interface
The T1040 TDM interface is connected to two dual SLIC/SLAC devices from Zarlink.
The Zarlink Le88266 Automatic Battery Switching (ABS) VoicePort™ device
implements a dual-channel telephone line interface by providing all the necessary voice
interface functions from the high voltage subscriber line to the T1040 digital TDM
interface.
The Zarlink device provides a line interface which meets the requirements of short and
medium loop (up to 1500 Ohms total at 1 REN) applications. Features include: high
voltage switching regulator, line test capabilities, integrated ringing (up to 92-Vpk),
worldwide software programmability with wideband capability, flexible signal generator
with tone cadencing and caller ID generation. These device features allow for Voice over
Broadband solutions to be enabled on the T1040RDB. The below Figure shows how the
SLIC is connected to the TDM interface of T1040 device
TDM
SPI1
T1040
SPI2
SLIC2
I/O
SLIC1
RJ11 FXS Port
Control
Relay
RJ11 FXS Port
RJ11 FXS Port
RJ11 FXS Port
RJ11 FXO Port
Figure 2-16. TDM connection
SLIC/SLAC and TDM interface
QorIQ T1040 Reference Design Board User Guide, Rev. 0, 06/2015
32
Freescale Semiconductor, Inc.
Summary of Contents for QorIQ T1040
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