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UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
1303 of 1441
NXP Semiconductors
UM10503
Chapter 46: LPC43xx/LPC43Sxx I2C-bus interface
Fig 180. Format and states in the Master Transmitter mode
DATA
A
R
W
SLA
S
DATA
A
W
SLA
to Master
receive
mode,
entry
= MR
MT
to corresponding
states in Slave mode
A OR A
A OR A
A
other Master
continues
other Master
continues
A
other Master
continues
20H
08H
18H
28H
30H
10H
68H 78H B0H
38H
38H
arbitration lost
in Slave
address or
Data byte
Not
Acknowledge
received after a
Data byte
Not
Acknowledge
received after
the Slave
address
next transfer
started with a
Repeated Start
condition
arbitration lost
and
addressed as
Slave
successful
transmission
to a Slave
Receiver
from Master to Slave
from Slave to Master
any number of data bytes and their associated Acknowledge bits
n
this number (contained in I2STA) corresponds to a defined state of the
I
2
C bus
A
P
P
S
P