qf4a512 ETC-unknow, qf4a512 Datasheet - Page 33

• Manufacturer Part Number: qf4a512
• Description: 4-channel Programmable Signal Converter Psc
• Manufacturer: ETC-unknow

Alternatively other user-specific information and/or formats can be stored in this area.
The user data is not copied into chip RAM at power up. Since direct reads from EEPROM are not usually possible there are two
methods to read/write the user data:
Rev C5, Jan 07
a) Using the SCRATCH registers. The 8 registers starting at address 001Dh can be used to transfer data 8 bytes at a time, using
b) Using the data RAM at startup. If the device is powered up in Configure mode all 128 bytes of user data can be block
the multi-byte transfer method described above.
transferred into the filter data RAM starting at address 1000h. Once the device enters Run mode this data will be overwritten
with the data output from the FIRs so this technique can only be used at startup.
PRELIMINARY
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QF4A512