CDB5461AU Cirrus Logic Inc, CDB5461AU Datasheet - Page 8
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CDB5461AU
Manufacturer Part Number
CDB5461AU
Description
Eval Bd Sngl Phase Power/Energy
Manufacturer
Cirrus Logic Inc
Specifications of CDB5461AU
Main Purpose
Power Management, Energy/Power Meter
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
CS5461A
Primary Attributes
1-Phase, Energy-to-Frequency Output
Secondary Attributes
GUI, USB, SPI, Microwire Interfaces
Processor To Be Evaluated
CS5461A, C8051F320
Interface Type
USB
Operating Supply Voltage
5 V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant, Contains lead / RoHS non-compliant
Other names
598-1552
1.3
With a jumper connection on J18 (AUTO-BOOT ENABLE), the CS5461A operates in auto-boot mode and the
CDB5461AU board operates in a stand-alone manner without connecting to a PC. When in auto-boot mode, a hard-
ware reset (pressing on S1) will cause the CS5461A to boot up using the serial data from the serial EEPROM on
the board (U10). When the CS5461A is in auto-boot mode, the SPI connections between the microcontroller and
the CS5461A are removed and GUI software can not access the CS5461A registers and functions.
The EEPROM must be programmed prior to the auto-boot sequence. When the CDB5461AU Evaluation Board is
sent from the factory, the EEPROM is programmed with the following CS5461A command/data sequence:
This sequence programs the CS5461A for continuous conversion mode. If voltage and current signals are applied
to the inputs, the CS5461A will issue pulses on the /E1, /E2 and /E3 pins. See the CS5460A data sheet for more
details on auto-boot.
8
– 40 00 00 61
– Set configuration Register, turn high-pass filters on, set K = 1;
– 4C 00 7D 00
– Set PulseRateE1,2 Register to 1000 Hz;
– 74 00 00 04
– Unmask bit #2 (LSD) in the Mask Register
– E8
– Start continuous conversion
– 78 00 01 00
– Write to the STOP bit in the Control Register, to terminate auto-boot sequence.
Auto-boot Mode
CDB5461AU
DS661DB1