UM10503
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
1141 of 1269
NXP Semiconductors
UM10503
Chapter 43: LPC43xx I2C-bus interface
Table 1003.Slave Transmitter mode
Status
Code
(STAT)
Status of the I
2
C-bus
and hardware
Application software response
Next action taken by I
2
C hardware
To/From DAT
To CON
STA STO SI
AA
0xA8
Own SLA+R has been
received; ACK has
been returned.
Load data byte or
X
0
0
0
Last data byte will be transmitted and
ACK bit will be received.
Load data byte
X
0
0
1
Data byte will be transmitted; ACK will be
received.
0xB0
Arbitration lost in
SLA+R/W as master;
Own SLA+R has been
received, ACK has
been returned.
Load data byte or
X
0
0
0
Last data byte will be transmitted and
ACK bit will be received.
Load data byte
X
0
0
1
Data byte will be transmitted; ACK bit will
be received.
0xB8
Data byte in DAT has
been transmitted;
ACK has been
received.
Load data byte or
X
0
0
0
Last data byte will be transmitted and
ACK bit will be received.
Load data byte
X
0
0
1
Data byte will be transmitted; ACK bit will
be received.
0xC0
Data byte in DAT has
been transmitted;
NOT ACK has been
received.
No DAT action or
0
0
0
0
Switched to not addressed SLV mode; no
recognition of own SLA or General call
address.
No DAT action or
0
0
0
1
Switched to not addressed SLV mode;
Own SLA will be recognized; General call
address will be recognized if
ADR[0] = logic 1.
No DAT action or
1
0
0
0
Switched to not addressed SLV mode; no
recognition of own SLA or General call
address. A START condition will be
transmitted when the bus becomes free.
No DAT action
1
0
0
1
Switched to not addressed SLV mode;
Own SLA will be recognized; General call
address will be recognized if
ADR[0] = logic 1. A START condition will
be transmitted when the bus becomes
free.
0xC8
Last data byte in DAT
has been transmitted
(AA = 0); ACK has
been received.
No DAT action or
0
0
0
0
Switched to not addressed SLV mode; no
recognition of own SLA or General call
address.
No DAT action or
0
0
0
1
Switched to not addressed SLV mode;
Own SLA will be recognized; General call
address will be recognized if
ADR[0] = logic 1.
No DAT action or
1
0
0
0
Switched to not addressed SLV mode; no
recognition of own SLA or General call
address. A START condition will be
transmitted when the bus becomes free.
No DAT action
1
0
0
01
Switched to not addressed SLV mode;
Own SLA will be recognized; General call
address will be recognized if
ADR.0 = logic 1. A START condition will
be transmitted when the bus becomes
free.