AMBE-1000 Digital Voice Systems, Inc., AMBE-1000 Datasheet - Page 18

• Manufacturer Part Number: AMBE-1000
• Manufacturer: Digital Voice Systems, Inc.

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Select Pins
The AMBE-1000 is not recommended for new designs.
Interface
Please refer to the AMBE-2000/2020 product line.
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Table 3-A Channel Interface Selection Table
Selection of one of the parallel modes allows all ‘channel data’ transfers (including the
control functions) to be performed on an 8-bit wide bus. The two modes within parallel
mode are active and passive, and simply refer to the directionality of the read and
write strobes. Parallel mode is always in framed mode. See section 3.3 for all the
details on the parallel interface.
occur through a serial port. The serial port inputs and outputs a 16 bit word for every
write and read strobe signal respectively. Serial mode can be framed or unframed.
The serial framed mode can configure the direction of the output clock signal to be
input or output as shown in Table 3-A. Within the unframed mode, the data is input
and output in 16 bits words still but with only 1 to 4 voice data bits carried within each
word. These four configurations can be seen in Table 3-A. See section 3.4 for all the
details on the serial interface.
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Passive Mode
Passive Mode
Passive Mode
Passive Mode
Passive Mode
Passive Mode
Active Mode
Active Mode
Port Type
The AMBE-1000 is not recommended for new designs.
Parallel,
Parallel,
Serial,
Serial,
Serial,
Serial,
Serial,
Serial,
Please refer to the AMBE-2000/2020 product line.
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(Self Sync)
(Self Sync)
(Self Sync)
(Self Sync)
Unframed
Unframed
Unframed
Unframed
Framed
Framed
Framed
Framed
Format
Data
page 18
Selection of a serial mode restricts all transfers to
Output
Input
Direction of Control Signals
N/A
N/A
N/A
N/A
N/A
N/A
Input
Input
Input
Input
Input
Input
N/A
N/A
Output
Input
Input
Input
Input
Input
N/A
N/A
Number of Voice
Data Bits per
Word
N/A
N/A
N/A
N/A
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2
3
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