TB1254N View Datasheet(PDF) - Toshiba
Part Name
Description
Manufacturer
TB1254N Datasheet PDF : 58 Pages
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DATA TRANSFER FORMAT VIA I2C BUS
Start and stop condition
SDA
SCL
Bit transfer
SDA
S
Start condition
P
Stop condition
SCL
Acknowledge
SDA by
transmitter
SDA by
receiver
SCL from
master
S
Data transmit format 1
S Slave address
7bit
MSB
S : Start condition
Data transmit format 2
S Slave address
SDA stable
Change of SDA allowed
The transmitter releases the SDA line (HIGH)
during the acknowledge clock pulse.
The receiver has to pull down the SDA line
(LOW) during the acknowledge clock pulse.
1
8
9
Clock pulse for acknowledgment
0A
Sub address
8bit
MSB
A : Acknowledge
A
Transmit data
8bit
MSB
AP
P : Stop condition
0A
Sub address
A Transmit data 1
A
Sub address
A Transmit data n
AP
Data received format
S Slave address
1 A Received data 01
A Received data 02
AP
7bit
8bit
MSB
MSB
At the moment of the first acknowledge, the master transmitter becomes a master receiver and the slave receiver
becomes a slave transmitter. This acknowledge is still generated by the slave.
The Stop condition is generated by the master.
Ver3.7
00/01/28 20
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