24AA02T MICROCHIP [Microchip Technology], 24AA02T Datasheet - Page 9
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24AA02T
Manufacturer Part Number
24AA02T
Description
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.24AA02T.pdf
(32 pages)
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7.0
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a write
command has been issued from the master, the device
initiates the internally-timed write cycle and ACK polling
can then be initiated immediately. This involves the
master sending a Start condition followed by the control
byte for a write command (R/W =
busy with the write cycle, no ACK will be returned. If the
cycle is complete, the device will return the ACK and
the master can then proceed with the next read or write
command. See Figure 7-1 for a flow diagram of this
operation.
FIGURE 7-1:
© 2009 Microchip Technology Inc.
ACKNOWLEDGE POLLING
Initiate Write Cycle
Send Control Byte
Write Command
with R/W = 0
Acknowledge
Condition to
Send Stop
(ACK = 0)?
Send Start
Did Device
Operation
Send
Next
ACKNOWLEDGE POLLING
FLOW
Yes
0
). If the device is still
No
24AA02/24LC02B
DS21709J-page 9