Philips LPC2101 - Page 138

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
User manual Rev. 01 — 12 January 2006 138
Philips Semiconductors
UM10161
Volume 1
Chapter 11: I
2
C interfaces
Fig 34. Format and states in the Slave Receiver mode
A
A P OR SARSLAS
P OR S
A
A
68H
60H 80H
88H
Reception of the
General Call address
and one or more Data
bytes
Arbitration lost as
Master and addressed
as Slave
Last data byte
received is Not
Acknowledged
Arbitration lost as
Master and addressed
as Slave by General
Call
Reception of the own
Slave Address and one
or more Data bytes all
are acknowledged
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
DATAADATA
80H A0H
Last data byte is Not
Acknowledged
A
P OR SA
70h 90h
DATAADATA
90h A0H
GENERAL CALL
A
98h
P OR S
A
78h
DATA