PCF2113DUSLASH2SLASHF4 datasheet(40/65 Pages) NXP

40 / 65 page

PCF2113_FAM_4

Product data sheet

Rev. 04 — 4 March 2008

40 of 65

NXP Semiconductors

PCF2113x

LCD controllers/drivers

11.2.2 Deﬁnitions

• Transmitter: the device that sends the data to the bus

• Receiver: the device that receives the data from the bus

• Master: the device that initiates and terminates a transfer and generates clock signals

• Slave: the device addressed by a master

• Multi-master: more than one master can attempt to control the bus at the same time

without corrupting the message

• Arbitration: procedure to ensure that if more than one master simultaneously tries to

control the bus, only one is allowed to do so and the message is not corrupted

• Synchronization: procedure to synchronize the clock signals of two or more devices

Fig 29. Bit transfer

Fig 30. Deﬁnition of START and STOP conditions

Fig 31. Acknowledgement on the I2C-bus

mbc621

data line

stable;

data valid

change

of data

allowed

SDA

SCL

mbc622

SDA

SCL

STOP condition

SDA

SCL

START condition

mbc602

START

condition

clock pulse for

acknowledgement

not acknowledge

acknowledge

data output

by transmitter

data output

by receiver

SCL from

master

PCF2113DU/2/F4 数据表(PDF) 40 Page - NXP Semiconductors

PCF2113DU/2/F4 数据表(HTML) 40 Page - NXP Semiconductors

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