UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 19 December 2013  461 of 841
NXP Semiconductors
UM10360
Chapter 19: LPC176x/5x I2C0/1/2
0x98 Previously addressed 
with General Call; DATA 
byte has been received; 
NOT ACK has been 
returned.
Read data byte 
or
0 0 0 0 Switched to not addressed SLV mode; no 
recognition of own SLA or General Call 
address.
Read data byte 
or
0 0 0 1 Switched to not addressed SLV mode; 
Own SLA will be recognized; General Call 
address will be recognized if 
I2ADR[0] = logic 1.
Read data byte 
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.
Read data byte 1 0 0 1 Switched to not addressed SLV mode; 
Own SLA will be recognized; General Call 
address will be recognized if 
I2ADR[0] = logic 1. A START condition will 
be transmitted when the bus becomes 
free.
0xA0 A STOP condition or 
repeated START 
condition has been 
received while still 
addressed as Slave 
Receiver or Slave 
Transmitter.
No STDAT 
action or
0 0 0 0 Switched to not addressed SLV mode; no 
recognition of own SLA or General Call 
address.
No STDAT 
action or
0 0 0 1 Switched to not addressed SLV mode; 
Own SLA will be recognized; General Call 
address will be recognized if 
I2ADR[0] = logic 1.
No STDAT 
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 STDAT 
action
1 0 0 1 Switched to not addressed SLV mode; 
Own SLA will be recognized; General Call 
address will be recognized if 
I2ADR[0] = logic 1. A START condition will 
be transmitted when the bus becomes 
free.
Table 400. Slave Receiver mode
I2CSTAT 
Status 
Code
Status of the I
2
C-bus 
and hardware
Application software response Next action taken by I
2
C hardware
To/From I2DAT To I2CON
STA STO SI AA