CDB42518 Cirrus Logic Inc, CDB42518 Datasheet - Page 53
CDB42518
Manufacturer Part Number
CDB42518
Description
BOARD EVAL FOR CS42518 CODEC
Manufacturer
Cirrus Logic Inc
Specifications of CDB42518
Main Purpose
Audio, CODEC
Embedded
Yes, FPGA / CPLD
Utilized Ic / Part
CS42518/16
Primary Attributes
6 Single-Ended Analog Inputs and 8 Outputs, S/PDIF Digital Audio Transmitter and Receiver
Secondary Attributes
GUI, I2C, SPI Interfaces
Product
Audio Modules
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
598-1502
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DS584F1
6.7
6.7.1
6.7.2
6.7.3
6.7.4
RMCK_DIV1
7
Clock Control (address 06h)
RMCK DIVIDE (RMCK_DIVX)
OMCK FREQUENCY (OMCK FREQX)
PLL LOCK TO LRCK (PLL_LRCK)
MASTER CLOCK SOURCE SELECT (SW_CTRLX)
Default = 00
Function:
Default = 00
Function:
Default = 0
0 - Disabled
1 - Enabled
Function:
Default = 00
Function:
When enabled, the internal PLL of the CS42518 will lock to the SAI_LRCK of the SAI serial port.
Divides/multiplies the internal MCLK, either from the PLL or OMCK, by the selected factor.
Sets the appropriate frequency for the supplied OMCK.
These two bits, along with the UNLOCK bit in register
on page
are set to '00'b, selecting the output of the PLL as the internal clock source, and the PLL becomes
unlocked, RMCK will equal OMCK, but all internal and serial port timings are not valid.
When the FRC_PLL_LK bit is set to ‘1’b, the SW_CTRLX bits must be set to ‘00’b. If the PLL becomes
RMCK_DIV0
OMCK Freq1 OMCK Freq0
6
63, determine the master clock source for the CS42518. When SW_CTRL1 and SW_CTRL0
0
0
1
1
OMCK Freq1
RMCK_DIV1 RMCK_DIV0
5
0
0
1
1
Table 11. OMCK Frequency Settings
0
1
0
1
Table 10. RMCK Divider Settings
OMCK Freq0
11.2896 MHz or 12.2880 MHz
16.9344 MHz or 18.4320 MHz
22.5792 MHz or 24.5760 MHz
Reserved
4
0
1
0
1
PLL_LRCK
Multiply by 2
Description
Divide by 1
Divide by 2
Divide by 4
3
Description
“Interrupt Status (address 20h) (Read Only)”
SW_CTRL1
2
SW_CTRL0
1
FRC_PLL_LK
CS42518
0
53
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