ata6603 ATMEL Corporation, ata6603 Datasheet - Page 252

• Manufacturer Part Number: ata6603
• Description: Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
• Manufacturer: ATMEL Corporation

Table 4-92.
252
Status Code
(TWSR)
Prescaler
Bits
are 0
0x60
0x68
0x70
0x78
0x80
0x88
ATA6602/ATA6603
Status of the 2-wire Serial
Bus and 2-wire Serial
Interface Hardware
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
Status Codes for Slave Receiver Mode
No TWDR action or
No TWDR action or
No TWDR action or
No TWDR action or
Read data byte or
Read data byte or
Read data byte or
Read data byte or
No TWDR action
No TWDR action
No TWDR action
No TWDR action
To/from TWDR
Read data byte
Read data byte
Application Software Response
STA
X
X
X
X
X
X
X
X
X
X
0
0
1
1
STO TWINT TWEA
To TWCR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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 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
4921D–AUTO–08/07