ADAU1446
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The ADAU1442 / ADAU1445 / ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core...
Datasheet
ADAU1446 on Analog.com
ADAU1442
Production
The ADAU1442 / ADAU1445 / ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core...
Datasheet
ADAU1442 on Analog.com
ADAU1445
Production
The ADAU1442 / ADAU1445 / ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core...
Datasheet
ADAU1445 on Analog.com
ADAU1761
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The ADAU1761 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 kHz record and playback at 14 mW from...
Datasheet
ADAU1761 on Analog.com
In order to use software safeload to write data to parameter RAM, at least three writes must be performed. First, the data is loaded into the safeload data registers (addresses 0x0001 through 0x0005), then the safeload target address register (address 0x0006), and finally the number of words / trigger register (address 0x0007). So, in order to execute a safeload write, there are at least 3 register writes that need to occur.
Single address safeload write
For example, if I wanted to write one word of data to address 0x000B…
There are 3 total writes:
This will trigger the safeload write on the next frame.
Note that the target address is actually shifted down by one, as mentioned in the datasheets for devices using software safeload. So, even though I’m writing to address 0x000B, I write 0x000A to the target address register.
Multiple address safeload write
Here’s another example, where I will write 3 words of data instead of 1 word. The target addresses for the 3 words of data are 0x001C, 0x001D, and 0x001E.
There are 5 total writes:
This will trigger the safeload write on the next frame.
Note that multi-word safeload writes can only be accomplished when the target addresses are sequential.
