Philips LPC2101 - Page 144

© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
User manual Rev. 01 — 12 January 2006 144
Philips Semiconductors
UM10161
Volume 1
Chapter 11: I
2
C interfaces
Table 136: Slave Transmitter mode
Status
Code
(I2CSTAT)
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
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 I2DAT
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 I2DAT
has been transmitted;
NOT ACK has been
received.
No I2DAT action or 0 0 0 0 Switched to not addressed SLV mode; no
recognition of own SLA or General call
address.
No I2DAT 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 I2DAT 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 I2DAT 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.
0xC8 Last data byte in
I2DAT has been
transmitted (AA = 0);
ACK has been
received.
No I2DAT action or 0 0 0 0 Switched to not addressed SLV mode; no
recognition of own SLA or General call
address.
No I2DAT 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 I2DAT 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 I2DAT action 1 0 0 01 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.