In figures, Figure 22–120, Nxp semiconductors – NXP Semiconductors LPC24XX UM10237 User Manual

Page 590: Chapter 22: lpc24xx i, C interfaces i, C0/1/2

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UM10237_4

© NXP B.V. 2009. All rights reserved.

User manual

Rev. 04 — 26 August 2009

590 of 792

NXP Semiconductors

UM10237

Chapter 22: LPC24XX I

2

C interfaces I

2

C0/1/2

Fig 120. 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

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