MT8920BC Zarlink Semiconductor, MT8920BC Datasheet - Page 14
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MT8920BC
Manufacturer Part Number
MT8920BC
Description
MT8920 - 32 Channels TDM (ST-BUS) to Parallel Bus Access Circuit
Manufacturer
Zarlink Semiconductor
Datasheet
1.MT8920BC.pdf
(27 pages)
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MT8920B
14
Digital Signal Processor to ST-BUS Interface
Mode 2 allows many high speed devices to be easily
connected to the ST-BUS.
TMS32020 digital signal processor interfaced to the
ST-BUS through the STPA.
allows complex functions to be implemented in such
systems as PBX’s and computer systems. Some of
the possible functions include:
TMS32020
READY
D7-D0
A8-A0
STRB
MSC
RW
DS
This simple interface
Figure 12 shows a
A9
A8
A7
A6
Figure 12 - ST-BUS to DSP Interface
E2
E1
A
B
C
74HCT
138
-
-
-
-
-
-
-
-
-
-
-
Digital Filtering
Voice Conferencing
Speech/Data Compression
Encryption
Tone Detection and Generation
Frequency Spectrum Analysis
Image Processing
µ-Law to A-Law Conversion
Echo Cancellation
Modulation
Speech Synthesis and Recognition
CS
A5-A0
D7-D0
OE
WE
MMS MS1 24/32
MT8920B
+5V +5V
STo0
STi0
STo1
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