CY28800OXCT Silicon Laboratories Inc, CY28800OXCT Datasheet - Page 3

• Manufacturer Part Number: CY28800OXCT
• Description: Clock Buffer PCI Express & Sata Diff Buffer 100MHz
• Manufacturer: Silicon Laboratories Inc

Specifications of CY28800OXCT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev 1.0, November 21, 2006
Table 2. Block Read and Block Write Protocol
Table 3. Byte Read and Byte Write Protocol
11:18
20:27
20:27
29:36
38:45
11:18
Bit
2:8
10
19
28
29
1
9
2:8
Bit
10
19
28
37
46
....
....
....
....
1
9
Start
Slave address – 7 bits
Write = 0
Acknowledge from slave
Command Code – 8 bits
'100xxxxx' stands for byte operation, bits[6:0] of the
command code represents the offset of the byte to be
accessed
Acknowledge from slave
Data byte from master – 8 bits
Acknowledge from slave
Stop
Slave address – 7 bits
Command Code – 8 bits
Data bytes from master/Acknowledge
Data Byte N – 8 bits
Acknowledge from slave
Stop
Start
Write = 0
Acknowledge from slave
'00000000' stands for block operation
Acknowledge from slave
Byte Count from master – 8 bits
Acknowledge from slave
Data byte 0 from master – 8 bits
Acknowledge from slave
Data byte 1 from master – 8 bits
Acknowledge from slave
Block Write Protocol
Byte Write Protocol
Description
Description
21:27
30:37
39:46
48:55
11:18
2:8
Bit
10
19
20
28
29
38
47
56
....
....
....
....
1
9
21:27
30:37
11:18
Bit
2:8
10
19
20
28
29
38
39
1
9
Start
Slave address – 7 bits
Write = 0
Acknowledge from slave
Command Code – 8 bits
'00000000' stands for block operation
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read = 1
Acknowledge from slave
Byte count from slave – 8 bits
Acknowledge from host
Data byte 0 from slave – 8 bits
Acknowledge from host
Data byte 1 from slave – 8 bits
Acknowledge from host
Data bytes from slave/Acknowledge
Data byte N from slave – 8 bits
Acknowledge from host
Stop
Start
Slave address – 7 bits
Write = 0
Acknowledge from slave
Command Code – 8 bits
'100xxxxx' stands for byte operation, bits[6:0]
of the command code represents the offset of
the byte to be accessed
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read = 1
Acknowledge from slave
Data byte from slave – 8 bits
Acknowledge from master
Stop
Block Read Protocol
Byte Read Protocol
Description
Description
CY28800
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