MN63Y1208 Datasheet, PDF (75/120 Pages) Panasonic Semiconductor – Built-in 4-Kbit FeRAM non-volatile memory with fast write and low power consumption

Chapter 5 Serial Communication Mode
5.2 I2C
This section describes the I2C specification.
5.2.1 Communication Specifications
Table 5-1 shows the I2C specification of this RFID.
Table 5-1 I2C Communication Specification
Data transfer method
Data rate
Character
transmission
I2C-format, Slave communication
20 kHz to 100 kHz
x Slave address (7 bits)
x Data (8 bits)
5.2.2 Frame Format
Figure 5-2 illustrates the I2C frame format, Table 5-2 defines the field.
Address field
1 byte
Data field
0 to 255 bytes
Figure 5-2 Frame Format
Field name
Address field
Data field
Table 5-2 Field Definition
Byte length
Definition
1
Slave address (7 bits) and data direction bit (R/W)
n
Command message or Response message
When the slave address is identified and the data direction bit is 0, a command is input from the host as slave
reception.
When the slave address is identified and the data direction bit is 1, a response is sent to the host as slave
transmission.
5.2.3 Specifying Slave Address
The slave address of I2C is specified by I2C_SLV in the system area HW1 of FeRAM.
For more information, see Section 3.3 HW1 (2 bytes) in Section System Area.
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