AMBE-1000 Digital Voice Systems, Inc., AMBE-1000 Datasheet - Page 47

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

4.2.3
0x13EC
Header
The AMBE-1000 is not recommended for new designs.
0x03
ID
Please refer to the AMBE-2000/2020 product line.
Control_0 Control_1 Control_2 Control_3
Control Frame Input Procedure for Unframed Mode
All of the control frames discussed in sections 4.1.14.2 through 4.1.14.7 can be input in
Unframed mode.
mode as they are in Framed mode, though the method of entering them into the
decoder stream is different.
To enter a Control Frame, the Control Data field, of the Unframed Serial Data Input
Format described in the previous section, is populated for 27 consecutive serial port
writes, along side of the normal voice data. The Control Offset field of these 27 words
must be populated with the following progression 0x2, 0x2, 0x3, 0x3, 0x4, 0x4, 0x5,…
0xE, 0xE, 0xF. That is the values 0x2-0xe each repeated twice and the value 0xF used
once to mark the end of the Control Frame Data. The Control Data for the first 26
words is taken from the first 26 bytes of data in a regular Control Frame after the
header. The final word with Control Offset = 0xF uses Control Data of 0x00. See the
following example.
Table 4-AA Example Control Frame in Unframed Serial Mode
0x00
The sequence of 27 consecutive words that would be sent to the decoder to input this
particular example Control Frame would be :
Where X in each word is the Voice Data (1-4 bits per word).
0xX203, 0xX200, 0xX303, 0xX3C8, 0xX418, 0xX400, 0xX5FF, 0xX5FD,
0xX640, 0xX620, 0xX780, 0xX70F, 0xX8D0, 0xX800, 0xX91E, 0xX9A0,
0xXA00, 0xXA00, 0xXB00, 0xXB00, 0xXC00, 0xXC00, 0xXD00, 0xXD00,
0xXE00, 0xXE00, 0xXF00
Use these Bits (26 bytes) to Populate the Control Data Field of the Unformatted Input Format
0x03C8 0x1800 0xFFFD 0x4020 0x800F 0xD000 0x1EA0 0x0000 0x0000 0x0000 0x0000 0x0000
The AMBE-1000 is not recommended for new designs.
Please refer to the AMBE-2000/2020 product line.
The functionality of these Control Frames is identical in Unframed
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page 47
Optional Configuration Data
0x0000 0x0000 0x0000