ADE7166ASTZF8 Analog Devices Inc, ADE7166ASTZF8 Datasheet - Page 140

• Manufacturer Part Number: ADE7166ASTZF8
• Description: IC ENERGY METER 1PHASE 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of ADE7166ASTZF8

• Applications: Energy Measurement
• Core Processor: 8052
• Program Memory Type: FLASH (8 kB)
• Controller Series: ADE71xx
• 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

ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Table 154. I
Bit
7
6
5
4
[3:2]
1
0
READ AND WRITE OPERATIONS
Figure 113 and Figure 114 depict I
respectively. Note that the LSB of the I2CADR SFR is used to
select whether a read or write operation is performed on the
slave device. During the read operation, the master acknowledges
are generated automatically by the I
generated NACK (no acknowledge) before the end of a read
operation is also automatically generated after the I2CRCT bits
have been read from the slave. If the I2CADR register is
updated during a transmission, instead of generating a stop at
the end of the read or write operation, the master generates a
start condition and continues with the next communication.
SDATA
SCLK
START BY
MASTER
Mnemonic
I2CBUSY
I2CNOACK
I2CRxIRQ
I2CTxIRQ
I2CFIFOSTAT
I2CACC_ERR
I2CTxWR_ERR
A6
2
1
C Interrupt Status Register SFR (SPI2CSTAT, Address 0xEA)
SERIAL BUS ADDRESS BYTE
A5
SDATA
SCLK
A4
START BY
MASTER
FRAME 1
A3
A2
Default
0
0
0
0
0
0
0
A6
1
A1
2
C read and write operations,
A5
SERIAL BUS ADDRESS BYTE
2
C peripheral. The master
A0
A4
Description
This bit is set to Logic 1 when the I
I
does not send an acknowledgement. The I
Write a 0 to this bit to clear it.
I
Write a 0 to this bit to clear it.
I
Write a 0 to this bit to clear it.
Status bits for 3- or 4-bytes deep I
used in I
I2CFIFOSTAT
00
01
10
11
Set when trying to write and read at the same time. Write a 0 to this bit to clear it.
Set when a write was attempted when the I
R/W
2
2
2
C no acknowledgement transmit interrupt. This bit is set to Logic 1 when the slave device
C receive interrupt. This bit is set to Logic 1 when the receive FIFO is not empty.
C Transmit Interrupt. This bit is set to Logic 1 when the transmit FIFO is empty.
ACK BY
SLAVE
FRAME 1
A3
9
A2
2
D7
C communication (receive or transmit) because only one FIFO is active at a time.
1
A1
D6
DATA BYTE 1 FROM MASTER
Figure 114. I
Figure 113. I
A0
D5
Rev. B | Page 140 of 152
R/W
D4
ACK BY
SLAVE
FRAME 2
Result
FIFO empty
Reserved
FIFO half full
FIFO full
D3
9
2
2
C Write Operation
C Read Operation
D2
D7
1
2
D1
D6
2
Reading the SPI/I
Address 0x9B)
Reading the SPI2CRx SFR should be done with a 2-cycle
instruction, such as
Mov a, spi2crx or Mov R0, spi2crx.
A 3-cycle instruction such as
Mov 3dh, spi2crx
does not transfer the right data into RAM Address 0x3D.
C FIFO. The FIFO monitored in these two bits is the one currently
C interface is used. When set, the Tx FIFO is emptied.
DATA BYTE 1 FROM MASTER
D0
D5
ACK BY
MASTER
2
9
D4
C communication is stopped after this event.
2
C transmit FIFO was full. Write a 0 to this bit to clear it.
FRAME 2
D3
D2
D7
1
2
C Receive Buffer SFR (SPI2CRx,
D6
D1
DATA BYTE N FROM SLAVE
D5
D0
ACK BY
SLAVE
D4
9
FRAME N + 1
D3
STOP BY
MASTER
D2
D1
D0
NACK BY
MASTER
9
STOP BY
MASTER