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CS4231A-KQ
User Manuals: Crystal CS4231A-KQ Conference System
Manuals and User Guides for Crystal CS4231A-KQ Conference System. We have
1
Crystal CS4231A-KQ Conference System manual available for free PDF download: Manual
Crystal CS4231A-KQ Manual (76 pages)
Parallel Interface, Multimedia Audio Codec
Brand:
Crystal
| Category:
Conference System
| Size: 2 MB
Table of Contents
Table of Contents
2
Cs4231A Technical Specifications
3
General Description
12
Enhanced Functions (MODE 2)
12
Mixer Attenuation Control on Line Input
12
Analog Hardware Description
12
Analog Inputs
12
Line-Level Inputs Plus MPC Mixer
13
Microphone Level Inputs
13
Mono Input with Attenuation and Mute
13
Analog Outputs
13
Mono Output with Mute Control
14
Miscellaneous Analog Signals
14
Digital Hardware Description
14
Parallel Data Interface
14
Fifos
14
High Current Data Bus Drivers
15
PIO Registers Interface
15
DMA Interface
15
Dual DMA Channel Mode
16
Single DMA Channel (SDC) Mode
16
Serial Audio Data Port
16
Miscellaneous Signals
18
Crystals/Clocks
18
Power down - PDWN
19
Dben/Dbdir
19
Software Description
19
Power-Down and Initialization
19
Calibration Modes
20
Changing Sampling Rate
21
Changing Audio Data Formats
21
Audio Data Formats
21
16-Bit Signed
22
8-Bit Unsigned
22
8-Bit Companded
22
ADPCM Compression/Decompression
25
DMA Registers
25
Playback DMA Registers
26
Capture DMA Registers
26
Digital Loopback
26
Timer Registers
27
Interrupts
27
Error Conditions
27
Cs4231A Register Mapping
28
Physical Mapping
28
Index Address Register
29
Index Data Register
29
Status Register
29
Playback I/O Data Register
31
Left ADC Input Control
31
Right ADC Input Control
31
Left Auxiliary #1 Input Control
31
Right Auxiliary #1 Input Control
32
Left Auxiliary #2 Input Control
32
Right Auxiliary #2 Input Control
32
Left DAC Output Control
32
Right DAC Output Control
32
Fs and Playback Data Format
33
Interface Configuration
34
Pin Control
35
Error Status and Initialization
35
MODE and ID
36
Playback Upper Base
36
Playback Lower Base
36
Alternate Feature Enable I
37
Alternate Feature Enable II
37
Left Line Input Control
37
Right Line Input Control
40
Timer Lower Base
40
Timer Upper Base
40
Alternate Feature Enable III
40
Alternate Feature Status
41
Mono Input & Output Control
41
Capture Data Format
42
Capture Upper Base
42
Grounding and Layout
43
Compatibility with Ad1848
43
Adc/Dac Filter Response Plots
45
Pin Descriptions
47
Parameter Definitions
54
Package Dimension
56
CDB4231/4248 Data Sheet
57
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