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Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller TQFP 64 (14x14) 8-Bit 16 MHz I/O number 48
221222223224225226227228229230
228
7593L–AVR–09/12
AT90USB64/128
0x20 SLA+W has been transmitted;
NOT ACK has been received
Load data byte
or
No TWDR action or
No TWDR action
or
No TWDR action
0
1
0
1
0
0
1
1
1
1
1
1
X
X
X
X
Data byte will be transmitted and ACK or NOT ACK
will be received
Repeated START will be transmitted
STOP condition will be transmitted and
TWSTO Flag will be reset
STOP condition followed by a START condition will
be transmitted and TWSTO Flag will be reset
0x28 Data byte has been transmitted;
ACK has been received
Load data byte
or
No TWDR action or
No TWDR action
or
No TWDR action
0
1
0
1
0
0
1
1
1
1
1
1
X
X
X
X
Data byte will be transmitted and ACK or NOT ACK
will be received
Repeated START will be transmitted
STOP condition will be transmitted and
TWSTO Flag will be reset
STOP condition followed by a START condition will
be transmitted and TWSTO Flag will be reset
0x30 Data byte has been transmitted;
NOT ACK has been received
Load data byte
or
No TWDR action or
No TWDR action
or
No TWDR action
0
1
0
1
0
0
1
1
1
1
1
1
X
X
X
X
Data byte will be transmitted and ACK or NOT ACK
will be received
Repeated START will be transmitted
STOP condition will be transmitted and
TWSTO Flag will be reset
STOP condition followed by a START condition will
be transmitted and TWSTO Flag will be reset
0x38 Arbitration lost in SLA+W or data
bytes
No TWDR action
or
No TWDR action
0
1
0
0
1
1
X
X
2-wire Serial Bus will be released and not addressed
Slave mode entered
A START condition will be transmitted when the bus
becomes free
Table 21-3. Status codes for Master Transmitter mode. (Continued)