psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 57
psb21381
Manufacturer Part Number
psb21381
Description
Siemens Codec With S/t Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PSB21381.pdf
(270 pages)
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2.2.3
For time slot oriented standard devices connected to the IOM-2 interface the SCOUT
provides two independent data strobe signals SDS1 and SDS2. The SDS2 function is
shared with the RSTO function at pin RSTO/SDS2, therefore the SDS2 functionality
must be selected by setting the RSS bits in the MODE1 register to ’01’.
Instead of a data strobe signal a strobed IOM bit clock can be provided on pin SDS1 and
SDS2.
2.2.3.1
The two strobe signals can be generated with every 8-kHz frame and are controlled by
the registers SDS1/2_CR. By programming the TSS bits and three enable bits
(ENS_TSS, ENS_TSS+1, ENS_TSS+3) a data strobe can be generated for the IOM-2
time slots TS, TS+1 and TS+3 and any combination of them.
The data strobes for TS and TS+1 are always 8 bits long (bit7 to bit0) whereas the data
strobe for TS+3 is always 2 bits long (bit7, bit6).
Data Sheet
Serial Data Strobe Signal and strobed Data Clock
Serial Data Strobe Signal
47
PSB 21381/2
PSB 21383/4
Interfaces
2001-03-12
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