AT94K05AL-25DQU Atmel, AT94K05AL-25DQU Datasheet - Page 149
AT94K05AL-25DQU
Manufacturer Part Number
AT94K05AL-25DQU
Description
Manufacturer
Atmel
Datasheet
1.AT94K05AL-25DQU.pdf
(204 pages)
Specifications of AT94K05AL-25DQU
Device System Gates
5000
Propagation Delay Time
12.1ns
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Operating Temperature Classification
Industrial
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Mounting
Surface Mount
Pin Count
208
Package Type
PQFP
Lead Free Status / RoHS Status
Compliant
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Table 4-29.
1138I–FPSLI–1/08
(TWSR)
Status
Code
$08
$10
$18
$20
$28
$30
$38
Serial Bus and 2-wire
A START condition
has been transmitted
A repeated START
condition has been
transmitted
SLA+W has been
transmitted;
ACK has been
received
SLA+W has been
transmitted;
NOT ACK has been
received
Data byte has been
transmitted;
ACK has been
received
Data byte has been
transmitted;
NOT ACK has been
received
Arbitration lost in
SLA+W or data bytes
Status of the 2-wire
Serial Hardware
Status Codes for Master Transmitter Mode
Load SLA+W
Load SLA+W or
Load SLA+R
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
To/From TWDR
Application Software Response
STA
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
STO
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
To TWCR
TWINT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AT94KAL Series FPSLIC
TWEA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SLA+W will be transmitted;
ACK or NOT ACK will be received
SLA+W will be transmitted;
ACK or NOT ACK will be received
SLA+R will be transmitted;
Logic will switch to Master Receiver mode
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
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
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
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
2-wire serial bus will be released and not
addressed Slave mode entered
A START condition will be transmitted when
the bus becomes free
Next Action Taken by 2-wire
Serial Hardware
149
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