at94k40al ATMEL Corporation, at94k40al Datasheet - Page 153

• Manufacturer Part Number: at94k40al
• Description: At94kal Series Field Programmable System Level Integrated Circuit
• Manufacturer: ATMEL Corporation

Table 4-31.
1138I–FPSLI–1/08
(TWSR)
Status
Code
$60
$68
$70
$78
$80
$88
Own SLA+W has been
received;
ACK has been returned
Arbitration lost in
SLA+R/W as Master;
own SLA+W has been
received;
ACK has been returned
General call address
has been received;
ACK has been returned
Arbitration lost in
SLA+R/W as Master;
General call address
has been received;
ACK has been returned
Previously addressed
with own SLA+W; data
has been received;
ACK has been returned
Previously addressed
with own SLA+W; data
has been received;
NOT ACK has been
returned
Serial Bus and 2-wire
Status of the 2-wire
Status Codes for Slave Receiver Mode
Serial Hardware
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
Read data byte or
Read data byte or
Read data byte or
Read data byte
To/From TWDR
Application Software Response
STA
X
X
X
X
X
X
X
X
X
X
0
0
1
1
STO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
To TWCR
TWINT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AT94KAL Series FPSLIC
TWEA
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Data byte will be received and NOT ACK
will be returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK
will be returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK
will be returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK
will be returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK
will be returned
Data byte will be received and ACK will be
returned
Switched to the not addressed Slave mode;
no recognition of own SLA or GCA
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”
Switched to the not addressed Slave mode;
no recognition of own SLA or GCA; a
START condition will be transmitted when
the bus becomes free
Switched to the not addressed Slave mode;
own SLA will be recognized; GCA will be
recognized if GC = “1”; a START condition
will be transmitted when the bus becomes
free
Next Action Taken by 2-wire
Serial Hardware
153