MIC284
First Byte of Transaction
MIC284
MIC284 Slave Address
Last Byte of Transaction
S 1 0 0 1 X X X X A X X X X X X X X A
…
X X X X X X X X /A P
NOT ACKNOWLEDGE
STOP
START
Conversion
in Progress
Conversion Interrupted
By MIC284 Acknowledge
New Conversion
Begins
t
CONV1
R/W = DONT CARE
ACKNOWLEDGE
ACKNOWLEDGE
A/D Converter
in Standby
New Conversion
in Progress
First
Result
Ready
Master-to-slave transmission
Slave-to-master response
Figure 4. A/D Converter Timing
10
MIC284 Slave Address
Command Byte = 01
h
= CONFIG
MIC284 Slave Address
CONFIG Value*
S 1 0 0 0 X X A0 0 A 0 0 0 0 0 0 0 1 A S 1 0 0 0 X X A0 1
A
X X X X X X X X /A P
START
R/W = WRITE
ACKNOWLEDGE
ACKNOWLEDGE
START
t
/INT
R/W = READ
ACKNOWLEDGE
NOT ACKNOWLEDGE
STOP
t
n/INT
INT
Temperature event occurs
* Status bits in CONFIG are cleared to zero following this operation
Master-to-slave transmission
Slave-to-master response
Figure 5. Responding to Interrupts
September 2005
Micrel, Inc
MICREL [ MICREL SEMICONDUCTOR ]
