qf4a512 ETC-unknow, qf4a512 Datasheet - Page 37

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

PRELIMINARY
QF4A512
Description: Command to start transfer from registers/RAM to EEPROM.
rd_status
* 0 = default
1 = start read of status register
Description: Command to start read of EEPROM status register.
Note: These command bits are automatically cleared by the chip after use. The reset value of this register is zero, regardless of the
data in the corresponding EEPROM address.
06h EE_COPY ( Full EEPROM Transfer) – AUTO CLEAR
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
Bit 0
Address 06h
X
X
X
X
X
X
wr_full rd_full
rd_full
* 0 = default
1 = start transfer
Description: Command to start full transfer from EEPROM to registers/RAM.
wr_full
* 0 = default
1 = start transfer
Description: Command to start full transfer from registers/RAM to EEPROM.
Note: These command bits are automatically cleared by the chip after use. The reset value of this register is zero, regardless of the
data in the corresponding EEPROM address.
For all the following registers the default values (shown with an *) will be overwritten with the values in the corresponding EEPROM
address if the auto_config bit in the STARTUP register is set in EEPROM memory.
07h STARTUP_1 (SPI Setup)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3 Bit 2
Bit 1
Bit 0
Address 07h alt_startup2 eeclk_rate2 eeclk_rate1 eeclk_rate0
0
0
auto_start auto_config
auto_config
* 0 = Does nothing.
1 = Data copied from EEPROM
Description: Automatically loads chip configuration registers and FIR coefficients into RAM.
auto_start
* 0 = Configure mode.
1 = Run mode
Description: In Run mode automatically starts filtering and sending out filtered data on the SIF interface.
Note: Bits 2 and 3 must be left at their default value of 0.
Rev C5, Jan 07
37
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