CDB42L52 Cirrus Logic Inc, CDB42L52 Datasheet - Page 39
CDB42L52
Manufacturer Part Number
CDB42L52
Description
Eval Bd LP Codec W/Class D Spkr Driver
Manufacturer
Cirrus Logic Inc
Specifications of CDB42L52
Main Purpose
Audio, CODEC
Embedded
Yes, FPGA / CPLD
Utilized Ic / Part
CS42L52
Primary Attributes
4 Stereo Audio Inputs, Stereo Line and Speaker Outputs, S/PDIF Inputs and Outputs
Secondary Attributes
GUI, I2C, SPI, USB Interfaces
Description/function
Audio CODECs
Operating Supply Voltage
5 V
Product
Audio Modules
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
CS42L52
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
598-1505
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DS680F1
4.12.2 Memory Address Pointer (MAP)
4.12.2.1 Map Increment (INCR)
The device has MAP auto-increment capability enabled by the INCR bit (the MSB) of the MAP. If INCR is
set to 0, MAP will stay constant for successive I²C writes or reads. If INCR is set to 1, MAP will auto-in-
crement after each byte is read or written, allowing block reads or writes of successive registers.
Send start condition.
Send 10010100 (chip address & write operation).
Receive acknowledge bit.
Send MAP byte, auto-increment off.
Receive acknowledge bit.
Send stop condition, aborting write.
Send start condition.
Send 10010101 (chip address & read operation).
Receive acknowledge bit.
Receive byte, contents of selected register.
Send acknowledge bit.
Send stop condition.
Setting the auto-increment bit in the MAP allows successive reads or writes of consecutive registers. Each
byte is separated by an acknowledge bit.
The MAP byte comes after the address byte and selects the register to be read or written. Refer to the
pseudo code above for implementation details.
5/13/08
CS42L52
39
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