CY28551LFXC Silicon Laboratories Inc, CY28551LFXC Datasheet - Page 5

• Manufacturer Part Number: CY28551LFXC
• Description: Clock Generators & Support Products Universal System Clk Intel AMD SiS Via
• Manufacturer: Silicon Laboratories Inc

Specifications of CY28551LFXC

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

Rev 1.1, Faburary 1, 2008
Table 3. Block Read and Block Write Protocol
Table 4. Byte Read and Byte Write Protocol
27:20
36:29
45:38
27:20
18:11
18:11
8:2
8:2
Bit
Bit
10
19
28
37
46
....
....
....
....
10
19
28
29
1
9
1
9
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 bits
Acknowledge from slave
Byte Count – 8 bits
(Skip this step if I
Acknowledge from slave
Data byte 1 – 8 bits
Acknowledge from slave
Data byte 2 – 8 bits
Acknowledge from slave
Data Byte/Slave Acknowledges
Data Byte N – 8 bits
Acknowledge from slave
Stop
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 bits
Acknowledge from slave
Data byte – 8 bits
Acknowledge from slave
Stop
Block Write Protocol
Byte Write Protocol
2
C_EN bit set)
Description
Description
27:21
37:30
46:39
55:48
18:11
18:11
27:21
37:30
8:2
Bit
38
10
19
20
28
29
47
56
....
....
....
....
8:2
Bit
10
19
20
28
29
38
39
1
9
1
9
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 bits
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read = 1
Acknowledge from slave
Acknowledge
Data byte 1 from slave – 8 bits
Data byte 2 from slave – 8 bits
Acknowledge
Data bytes from slave/Acknowledge
Data Byte N from slave – 8 bits
NOT Acknowledge
Byte Count from slave – 8 bits
Acknowledge
Stop
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 bits
Acknowledge from slave
Repeated start
Slave address – 7 bits
Read
Acknowledge from slave
Data from slave – 8 bits
NOT Acknowledge
Stop
Block Read Protocol
Byte Read Protocol
Description
Description
CY28551
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