24lcs52 Microchip Technology Inc., 24lcs52 Datasheet - Page 8

• Manufacturer Part Number: 24lcs52
• Description: 2 2k 2.2v I C Serial Eeprom With Software Write-protect
• Manufacturer: Microchip Technology Inc.

24AA52/24LCS52
5.0
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. ACK polling
can 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, then no ACK will be returned.
If the cycle is complete, then the device will return the
ACK and the master can then proceed with the next
Read or Write command. See Figure 5-1 for flow
diagram.
FIGURE 5-1:
DS21166J-page 8
ACKNOWLEDGE POLLING
Initiate Write Cycle
Send Control Byte
Write Command
with R/W = 0
Acknowledge
Condition to
Send Stop
(ACK = 0)?
Did Device
Send Start
Operation
Send
Next
ACKNOWLEDGE
POLLING FLOW
Yes
0
). If the device is still
No
© 2005 Microchip Technology Inc.