ATA6602-PLQW ATMEL [ATMEL Corporation], ATA6602-PLQW Datasheet - Page 252

• Manufacturer Part Number: ATA6602-PLQW
• Description: Microcontroller with LIN Transceiver, 5V Regulator and Watchdog
• Manufacturer: ATMEL [ATMEL Corporation]

Table 4-92.
252
Status Code
(TWSR)
Prescaler
Bits
are 0
0x90
0x98
0xA0
ATA6602/ATA6603
Status of the 2-wire Serial
Bus and 2-wire Serial
Interface Hardware
Previously addressed with
general call; data has been
received; ACK has been
returned
Previously addressed with
general call; data has been
received; NOT ACK has been
returned
A STOP condition or repeated
START condition has been
received while still addressed
as Slave
Status Codes for Slave Receiver Mode (Continued)
Read data byte or
Read data byte or
Read data byte or
Read data byte or
To/from TWDR
Read data byte
Read data byte
No action
Application Software Response
STA
X
X
0
0
1
1
0
0
1
1
STO TWINT TWEA
To TWCR
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
Next Action Taken by TWI Hardware
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 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
4921C–AUTO–01/07