CY28419 Cypress Semiconductor, CY28419 Datasheet - Page 4

• Manufacturer Part Number: CY28419
• Description: Clock Synthesizer
• Manufacturer: Cypress Semiconductor

Document #: 38-07444 Rev. *D
Table 4. Block Read and Block Write Protocol (continued)
Table 5. Byte Read and Byte Write Protocol
20:27
29:36
38:45
11:18
20:27
19
28
37
46
....
....
....
....
....
....
2:8
Bit
10
19
28
29
1
9
Acknowledge from slave
Byte Count – 8 bits
Acknowledge from slave
Data byte 1 – 8 bits
Acknowledge from slave
Data byte 2 – 8 bits
Acknowledge from slave
......................
Data Byte (N–1) –8 bits
Acknowledge from slave
Data Byte N –8 bits
Acknowledge from slave
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
Data byte from master – 8 bits
Acknowledge from slave
Stop
Block Write Protocol
Byte Write Protocol
Description
21:27
39:46
48:55
30:37
21:27
30:37
11:18
19
20
28
29
38
47
56
....
....
....
Bit
2:8
10
19
20
28
29
38
39
1
9
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read = 1
Acknowledge from slave
Acknowledge from master
Data byte from slave – 8 bits
Data byte from slave – 8 bits
Data byte N from slave – 8 bits
Acknowledge from master
Stop
Byte count from slave – 8 bits
Acknowledge from master
Acknowledge from master
Start
Slave address – 7 bits
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
Write = 0
Block Read Protocol
Byte Read Protocol
Description
CY28419
Page 4 of 16