參數(shù)資料
型號(hào)： IDT821064
廠商： Integrated Device Technology, Inc.
元件分類： Codec
英文描述： QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE
中文描述： 四可編程PCM編解碼器GCI界面
文件頁數(shù)： 20/33頁
文件大小： 510K
代理商： IDT821064
20
INDUSTRIAL TEMPERATURE RANGE
IDT821064 QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE
Voice Data select bit (VDS) defines the format of the voice data:
VDS = 0: Compressed code (default)
VDS = 1: Linear code
6. SLIC Ring Trip Setting and Control (27H/A7H), Read/Write
Output Polarity Indicator bit (OPI) indicates the valid polarity of output:
OPI = 0: the selected output pin changes from low to high to activate the ring (default);
OPI = 1: the selected output pin changes from high to low to activate the ring.
Input Polarity Indicator bit (IPI) indicates the valid polarity of input:
IPI = 0: active low (default); IPI = 1: active high.
Input Selection bit (IS) determines which input will be selected as the off-hook indication signal source.
IS = 0: SI1 is selected (default);
Ring Trip Enable bit (RTE) enables or disables the ring trip function block:
RTE = 0: the ring trip function block is disabled (default);
RTE = 1: the ring trip function block is enabled.
Output Selection bits (OS[2:0]) determine which output will be selected as the ring control signal source.
OS[2:0] = 000 - 010: not defined;
OS[2:0] = 011: SB1 is selected (when it is configured as an output);
OS[2:0] = 100: SB2 is selected (when it is configured as an output);
OS[2:0] = 101: SB3 is selected (when it is configured as an output);
OS[2:0] = 110: SO1 is selected;
OS[2:0] = 111: SO2 is selected.
IS = 1: SI2 is selected.
7. Read SI Data (28H), Read Only
SIA bits contain SLIC status which SLIC Interface Pin SI1 receives. The value of SIA [0], SIA[1], SIA[2] and SIA[3] represent the debounced data on
channel 1, channel 2, channel 3 and channel 4 respectively. SIB bits contain SLIC ground key status which SLIC Interface Pin SI2 receives. The
value of SIB [0], SIB[1], SIB[2] and SIB[3] represent the debounced data on channel 1, channel 2, channel 3 and channel 4 respectively.
8. SB1 Direction Control, SB1 Data (29H/A9H), Read/Write
SLIC SB1 direction control bits (SB1C[3:0]) configure the direction of SLIC bidirectional interface pin SB1.
SB1C[0]=0: SB1 pin of channel 1 is configured as input (default);
SB1C[0]=1: SB1 pin of channel 1 is configured as output;
SB1C[1]=0: SB1 pin of channel 2 is configured as input (default);
SB1C[1]=1: SB1 pin of channel 2 is configured as output;
SB1C[2]=0: SB1 pin of channel 3 is configured as input (default);
SB1C[2]=1: SB1 pin of channel 3 is configured as output;
SB1C[3]=0: SB1 pin of channel 4 is configured as input (default);
SB1C[3]=1: SB1 pin of channel 4 is configured as output.
When SB1 pin of one channel is configured as input, the corresponding SB1 bit of this command contains the SB1 information of this channel;
When SB1 pin of one channel is configured as output, the corresponding SB1 bit of this command is reserved, data can only be written to the SB1
pin of the corresponding channel via GCI C/I octet.
9. SB2 Direction Control, SB1 Data (2AH/AAH), Read/Write
b7
R
/W
OPI
b6
0
R
b5
1
IPI
b4
0
IS
b3
0
RTE
b2
1
b1
1
b0
1
Command
I/O data
OS[2]
OS[1]
OS[0]
b7
0
b6
0
b5
1
b4
0
b3
1
b2
0
b1
0
b0
0
Command
I/O data
SIB[3]
SIB[2]
SIB[1]
SIB[0]
SIA[3]
SIA[2]
SIA[1]
SIA[0]
b7
R
/W
SB1C[3]
b6
0
b5
1
b4
0
b3
1
b2
0
b1
0
b0
1
Command
I/O data
SB1C[2]
SB1C[1]
SB1C[0]
SB1[3]
SB1[2]
SB1[1]
SB1[0]
b7
R
/W
SB2C[3]
b6
0
b5
1
b4
0
b3
1
b2
0
b1
1
b0
0
Command
I/O data
SB2C[2]
SB2C[1]
SB2C[0]
SB2[3]
SB2[2]
SB2[1]
SB2[0]
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相關(guān)代理商/技術(shù)參數(shù)
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IDT821064PQF 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:QUAD PROGRAMMABLE PCM CODEC WITH GCI INTERFACE
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