CDB5467U Cirrus Logic Inc, CDB5467U Datasheet - Page 7

• Manufacturer Part Number: CDB5467U
• Description: BOARD EVAL FOR CS5467 ADC
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5467U

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5467
• Primary Attributes: Watt-Hour Meter
• Secondary Attributes: Graphical User Interface, SPI™ & USB Interfaces
• Product: Data Conversion Development Tools
• Maximum Clock Frequency: 4 MHz
• Interface Type: USB
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• For Use With/related Products: CS5467
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1555; CDB-5467U

1.6
With a jumper connection on J18 (AUTO-BOOT ENABLE), the CS5467 operates in auto-boot mode and
the CDB5467U board operates as a stand-alone system without attaching it up to a PC. When in auto-
boot mode, a hardware reset (press on S1) will cause the CS5467 to boot up using the serial data from
the serial EEPROM on the board (U10). When the CS5467 is in auto-boot mode, the SPI connections
between the microcontroller and the CS5467 are removed and the GUI software can not access the
CS5467 registers and functions.
The EEPROM must be programmed prior to the auto-boot sequence. When the CDB5467U Evaluation
Board is sent from the factory, the EEPROM is programmed with the following CS5467 command/data
sequence:
This sequence programs the CS5467 for continuous conversion mode. If voltage and current signals are
applied to the inputs, the CS5467 will issue pulses on the E1 pin. See the CS5467 data sheet for more
details on auto-boot.
DS714DB1
1.
2. Write Modes register, turn high-pass filters on:
3.
4. Set bit 2 (LSD) in the Mask register:
5. Start continuous conversion:
6. Write STOP bit in Control register, to terminate auto-boot sequence:
Auto-boot Mode
Move to EEPROM page 1
Move to EEPROM page 0
0x7E 0x00 0x00 0x01
0x60 0x00 0x01 0xE0
0x7E 0x00 0x00 0x00
0x74 0x00 0x00 0x04
0xE8
0x78 0x00 0x01 0x00
:
:
CDB5467U
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