cy2xf23 Cypress Semiconductor Corporation., cy2xf23 Datasheet - Page 5

• Manufacturer Part Number: cy2xf23
• Description: High Performance Lvds Oscillator With Frequency Margining - I 2c Control
• Manufacturer: Cypress Semiconductor Corporation.

Document Number: 001-53145 Rev. *A
SDA Write
Multiple
Contiguous
Registers
SDA Read
Current
Address
Read
SDA Read
Multiple
Contiguous
Registers
Start Signal
Start Signal
Start Signal
7-bit
Device
Address
7-bit
Device
Address
7-bit
Device
Address
R/W = 0
R/W = 1
R/W = 0
1 Bit
1 Bit
1 Bit
ACK
ACK
ACK
Slave
1 Bit
1 Bit
Slave
1 Bit
Slave
Register
Address
(XXH)
Register
Register
Data
Address
(XXH)
8-bit
8-bit
8-bit
SDA
SCLK
START
Figure 5. Data Valid and Data Transition Periods
1 Bit
Slave
ACK
1 Bit
Slave
ACK
1 Bit
Slave
ACK
Register
Data
(XXH)
Device
Address
+R/W=1
8-bit
7-bit
Repeated
Start bit
VIH
VIL
Figure 4. Data Frame Architecture
Figure 6. Start and Stop Frame
PRELIMINARY
1 Bit
Slave
ACK
1 Bit
Master
ACK
1 Bit
Master
ACK
(XXH+1)
(XXH)
Register
Data
Register
Data
Stop Signal
8-bit
8-bit
Data Valid
CLK
HIGH
1 Bit
Slave
ACK
1 Bit
Master
ACK
Register
Data
(XXH+2)
Register
Data
(XXH+1)
8-bit
8-bit
Transition
to next Bit
Transition
t
to next Bit
DH
CLK
LOW
t
SU
1 Bit
Slave
ACK
1 Bit
Master
ACK
(FFH)
(FFH)
Register
Data
Register
Data
8-bit
8-bit
STOP
1 Bit
Slave
ACK
1 Bit
Master
ACK
Register
Data
(00H)
Register
Data
(00H)
8-bit
8-bit
1 Bit
Slave
ACK
1 Bit
Master
ACK
SDA
SCLK
1 Bit
Slave
ACK
1 Bit
Master
ACK
Stop Signal
Stop Signal
CY2XF23
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