cy28442-2 Cypress Semiconductor Corporation., cy28442-2 Datasheet - Page 4

• Manufacturer Part Number: cy28442-2
• Description: Clock Generator For Intel Alviso Chipset
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-07691 Rev. *B
Table 3. Block Read and Block Write Protocol
Table 4. Byte Read and Byte Write Protocol
18:11
27:20
36:29
45:38
18:11
27:20
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
27:21
37:30
18:11
Bit
8:2
10
19
20
28
29
38
47
56
....
....
....
....
8:2
Bit
10
19
20
28
29
38
39
1
9
1
9
Data byte 1 from slave – 8 bits
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
Byte Count from slave – 8 bits
Acknowledge
Acknowledge
Data byte 2 from slave – 8 bits
Acknowledge
Data bytes from slave / Acknowledge
Data Byte N from slave – 8 bits
NOT 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
CY28442-2
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