CDB5463U Cirrus Logic Inc, CDB5463U Datasheet - Page 40

• Manufacturer Part Number: CDB5463U
• Description: BOARD EVAL & SOFTWARE CS5463 ADC
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5463U

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5463
• Primary Attributes: 1-Phase, Energy-to-Frequency Output
• Secondary Attributes: GUI, USB, SPI 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: CS5463
• 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: 598-1553

8. AUTO-BOOT MODE USING E
When the CS5463 MODE pin is asserted (logic 1), the
CS5463 auto-boot mode is enabled. In auto-boot mode,
the CS5463 downloads the required commands and
register data from an external serial E
the CS5463 to begin performing energy measurements.
8.1 Auto-boot Configuration
A typical auto-boot serial connection between the
CS5463 and a E
to-boot mode, the CS5463’s CS and SCLK are config-
ured as outputs. The CS5463 asserts CS (logic 0),
provides a clock on SCLK, and sends a read command
to the E
er-specified commands and register data presented on
the SDI pin. The E
by the CS5463 to change the designated registers’ de-
fault values and begin registering energy.
Figure 17 also shows the external connections that
would be made to a calibrator device, such as a PC or
custom calibration board. When the metering system is
installed, the calibrator would be used to control calibra-
tion and/or to program user-specified commands and
calibration values into the E
40
5 K
Figure 17. Typical Interface of E
VD+
MODE
2
PROM on SDO. The CS5463 reads the us-
CS5463
2
EOUT1
EOUT2
PROM is illustrated in Figure 17. In au-
SCLK
2
SDO
PROM’s programmed data is utilized
SDI
CS
Connector to Calibrator
2
Mech. Counter
Stepper Motor
PROM. The user-specified
5 K
or
2
PROM to CS5463
2
PROM, allowing
SCK
SO
SI
CS
EEPROM
2
PROM
commands/data will determine the CS5463’s exact op-
eration, when the auto-boot initialization sequence is
running. Any of the valid commands can be used.
8.2 Auto-boot Data for E
Below is an example code set for an auto-boot se-
quence. This code is written into the E
er. The serial data for such a sequence is shown below
in single-byte hexidecimal notation:
8.3 Which E
Several industry-standard serial E
cessfully run auto-boot with the CS5461A are listed be-
low:
•
•
•
These types of serial E
command (00000011) in order to perform a memory
read. The CS5461A has been hardware programmed to
transmit this 8-bit command to the E
ginning of the auto-boot sequence.
- 64 00 00 60
- 44 7F C4 A9
- 48 FF B2 53
- 74 00 00 04
- E8
- 78 00 01 00
Atmel AT25010, AT25020 or AT25040
National Semiconductor NM25C040M8 or NM25020M8
Xicor X25040SI
Write Operation Mode Register, turn high-pass
filters on.
Write value of 0x7FC4A9 to Current Gain
Register.
Write value of 0xFFB253 to Voltage Gain
Register.
Unmask bit #2 (LSD) in the Mask Register.
Start continuous conversions
Write STOP bit to Control Register, to terminate
auto-boot initialization sequence.
2
PROMs Can Be Used?
2
PROMs expect a specific 8-bit
2
PROM
2
PROMs that will suc-
2
2
PROM at the be-
PROM by the us-
CS5463
DS678F2