DS1089LU-266 Maxim Integrated Products, DS1089LU-266 Datasheet - Page 10

• Manufacturer Part Number: DS1089LU-266
• Description: Timers & Support Products 3.3V Center Spread-S pectrum EconOscillat
• Manufacturer: Maxim Integrated Products

The WRITE EE command is useful in closed-loop appli-
cations where the registers are frequently written. In
applications where the register contents are frequently
written, the WC bit should be set to 1 to prevent wear-
ing out the EEPROM. Regardless of the value of the WC
3.3V Center Spread-Spectrum EconOscillator™
Figure 3. I
Figure 4. Slave Address Byte
10
SDA
SCL
____________________________________________________________________
CONDITION
START
2
MSB
C Data Transfer Protocol
1
IDENTIFIER
0
DEVICE
MSB
1
1
1
2
SLAVE ADDRESS
A2
WRITE EE Command
ADDRESS
DEVICE
A1
A0
6
READ/WRITE BIT
LSB
R/W
7
DIRECTION
R/W
BIT
8
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
ACK
9
bit, the value of the ADDR register is always written
immediately to EEPROM. When the WRITE EE com-
mand has been received, the contents of the registers
are written into the EEPROM, thus locking in the regis-
ter settings.
1
2
REPEATED IF MORE BYTES
I
2
ARE TRANSFERRED
C Serial Port Operation
3–7
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
8
ACK
9
OR REPEATED
CONDITION
CONDITION
START
STOP