ATA6602-EK Atmel, ATA6602-EK Datasheet - Page 256

• Manufacturer Part Number: ATA6602-EK
• Manufacturer: Atmel

Specifications of ATA6602-EK

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Table 4-93.
256
Status Code
(TWSR)
Prescaler
Bits
are 0
0xA8
0xB0
0xB8
0xC0
0xC8
ATA6602/ATA6603
Status of the 2-wire Serial
Bus and 2-wire Serial
Interface Hardware
Own SLA+R has been
received;
ACK has been returned
Arbitration lost in SLA+R/W as
Master; own SLA+R has been
received; ACK has been
returned
Data byte in TWDR has been
transmitted; ACK has been
received
Data byte in TWDR has been
transmitted; NOT ACK has
been received
Last data byte in TWDR has
been transmitted (TWEA =
“0”); ACK has been received
Status Codes for Slave Transmitter Mode
No TWDR action or
No TWDR action or
No TWDR action or
No TWDR action or
No TWDR action or
No TWDR action or
Load data byte or
Load data byte or
Load data byte or
No TWDR action
No TWDR action
To/from TWDR
Load data byte
Load data byte
Load data byte
Application Software Response
STA
X
X
X
X
X
X
0
0
1
1
0
0
1
1
STO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
To TWCR
TWINT TWEA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Next Action Taken by TWI Hardware
Last data byte will be transmitted and NOT ACK
should be received
Data byte will be transmitted and ACK should be
received
Last data byte will be transmitted and NOT ACK
should be received
Data byte will be transmitted and ACK should be
received
Last data byte will be transmitted and NOT ACK
should be received
Data byte will be transmitted and ACK should be
received
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 TWGCE = “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 TWGCE = “1”;
a START condition will be transmitted when the
bus becomes free
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 TWGCE = “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 TWGCE = “1”;
a START condition will be transmitted when the
bus becomes free
4921E–AUTO–09/09