AD9923 Analog Devices, AD9923 Datasheet - Page 57

• Manufacturer Part Number: AD9923
• Manufacturer: Analog Devices

Serial Interface Read/Write Examples
Write to one control register:
•
•
•
•
•
Write to four consecutive control registers:
•
•
•
•
•
•
•
•
SDA
SCL
Start signal
Slave address byte (R/W\ bit = low)
Base address byte
Data byte to base address
Stop signal
Start signal
Slave address byte (R/W\ bit = LOW)
Base address byte
Data byte to base address
Data byte to (base address + 1)
Data byte to (base address + 2)
Data byte to (base address + 3)
Stop signal
BIT 7
Figure 18. Serial Interface—Typical Byte Transfer
SDA
SCL
BIT 6
t
t
STAH
BUFF
BIT 5
BIT 4
BIT 3
t
DHO
BIT 2
t
BIT 1
DAL
BIT 0
Figure 17. Serial Port Read/Write Timing
t
DAH
t
DSU
ACK
Rev. 0 | Page 57 of 64
Read from one control register:
•
•
•
•
•
•
•
Read from four consecutive control registers:
•
•
•
•
•
•
•
•
•
•
Start signal
Slave address byte (R/W\ bit = low)
Base address byte
Start signal
Slave address byte (R/W\ bit = high)
Data byte from base address
Stop signal
Start signal
Slave address byte (R/W\ bit = low)
Base address byte
Start signal
Slave address byte (R/W\ bit = high)
Data byte from base address
Data byte from (base address + 1)
Data byte from (base address + 2)
Data byte from (base address + 3)
Stop signal
t
STASU
t
STOSU
AD9880