ADE7566ASTZF8 Analog Devices Inc, ADE7566ASTZF8 Datasheet - Page 141

• Manufacturer Part Number: ADE7566ASTZF8
• Description: IC ENERGY METER MCU 8K 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of ADE7566ASTZF8

• Applications: Energy Measurement
• Core Processor: 8052
• Program Memory Type: FLASH (8 kB)
• Controller Series: ADE75xx
• Ram Size: 512 x 8
• Interface: I²C, SPI, UART
• Number Of I /o: 20
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 3.13V To 3.46V, 2.4V To 3.7V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I
The I
transmit FIFO. The buffers reduce the overhead associated with
using the I
I
The Tx FIFO can be loaded with four bytes to be transmitted to
the slave at the beginning of a write operation. When the
transmit FIFO is empty, the I
and the PC vectors to the I
enabled. If a new byte is not loaded into the Tx FIFO before it is
needed in the transmit shift register, the communication stops.
An error, such as not receiving an acknowledge, also causes the
communication to terminate. In case of an error during a write
operation, the Tx FIFO is flushed.
The Rx FIFO allows four bytes to be read in from the slave
before the MCU has to read the data. A receive interrupt can
be generated after each byte is received or when the Rx FIFO
2
2
C receive and transmit FIFOs.
C RECEIVE AND TRANSMIT FIFOS
2
C peripheral has a 4-byte receive FIFO and a 4-byte
2
C peripheral. Figure 115 shows the operation of the
2
C interrupt vector if this interrupt is
2
C transmit interrupt flag is set,
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Rev. B | Page 141 of 152
is full. If the peripheral is reading from a slave address, the
communication stops when the number of received bytes equals
the number set in the I2CRCT bits. An error, such as not
receiving an acknowledge, also causes the communication to
terminate.
4 BYTE FIFO
CODE TO FILL Tx FIFO:
MOV I
MOV I
MOV I
MOV I
TRANSMIT SHIFT REGISTER
2
2
2
2
CTx, TxDATA1
CTx, TxDATA2
CTx, TxDATA3
CTx, TxDATA4
TxDATA4
TxDATA3
TxDATA2
TxDATA1
I
2
CTx
Figure 115. I
4 BYTE FIFO
2
CODE TO READ Rx FIFO:
MOV A, I
MOV A, I
MOV A, I
MOV A, I
C FIFO Operation
RECEIVE SHIFT REGISTER
2
2
2
2
CRx; RESULT: A = RxDATA1
CRx; RESULT: A = RxDATA2
CRx; RESULT: A = RxDATA3
CRx; RESULT: A = RxDATA4
RxDATA1
RxDATA2
RxDATA3
RxDATA4
I
2
CRx