Rainbow Electronics DS1094L - Manual (Page 11)

DS1094L
Multiphase Spread-Spectrum EconOscillator
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DALLAS is a registered trademark of Dallas Semiconductor Corporation.
Chip Topology
TRANSISTOR COUNT: 7987
SUBSTRATE CONNECTED TO: GROUND
Package Information
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo.
SLAVE ADDRESS
START 1 0 1 1 A2* A1* A0* R/W
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
SLAVE
ACK
MSB LSB
b7 b6 b5 b4 b3 b2 b1 b0
MSB LSB
READ/
WRITE COMMAND/REGISTER ADDRESS
b7 b6 b5 b4 b3 b2 b1 b0
MSB LSB
DATA
STOP
A) SINGLE BYTE WRITE
-WRITE DAC REGISTER TO 0Ah
C) SINGLE BYTE WRITE
-WRITE PRESCALER
REGISTER TO CDh
B) SINGLE BYTE READ
-READ DAC REGISTER
D) WRITE EE COMMAND
- NEEDED ONLY IF WC = 1
TYPICAL 2-WIRE WRITE TRANSACTION
START STOP 1 0 1 1 0 0 0 0 0 0 1 1 1 1 1 1
B0h 3Fh
START
REPEATED
START
B1h
MASTER
NACK
STOP 1 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0
B0h 08h
1 0 1 1 0 0 0 1
START 1 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0
B0h 08h
STOP
DAC VALUE
START 1 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0
B0h 02h
STOP
DATA
CDh
0Ah
EXAMPLE 2-WIRE TRANSACTIONS (WHEN A0, A1, AND A2 ARE ZERO)
* THE ADDRESS DETERMINED BY A0, A1, AND A2 MUST MATCH THE ADDRESS SET IN THE ADDR REGISTER.
0 0 0 0 1 0 1 0
1 1 0 0 1 1 0 1
Figure 5. 2-Wire Communication Examples