cy28src02 Cypress Semiconductor Corporation., cy28src02 Datasheet - Page 3

• Manufacturer Part Number: cy28src02
• Description: Pci-express Clock Generator
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 001-00042 Rev. *A
Table 2. Block Read and Block Write Protocol (continued)
Table 3. Byte Read and Byte Write Protocol
Control Registers
Byte 0:Control Register 0
36:29
45:38
18:11
27:20
Bit
8:2
Bit
Bit
37
46
....
....
....
....
10
19
28
29
7
6
5
4
3
2
1
9
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
@Pup
0
1
1
1
1
1
Block Write Protocol
Byte Write Protocol
Reserved
SRC[T/C]4
SRC[T/C]3
SRC[T/C]2
SRC[T/C]1
SRC [T/C]0
Description
Description
Name
PRELIMINARY
Reserved
SRC[T/C]4 Output
0 = Disable (Hi-Z),
1 = Enable
SRC[T/C]3 Output
0 = Disable (Hi-Z),
1 = Enable
SRC[T/C]2 Output
0 = Disable (Hi-Z)
1 = Enable
SRC[T/C]1 Output
0 = Disable (Hi-Z), 1 = Enable
SRC[T/C]0 Output
0 = Disable (Hi-Z), 1 = Enable
37:30
46:39
55:48
27:21
37:30
18:11
Bit
28
29
38
47
56
....
....
....
8:2
Bit
10
19
20
28
29
38
39
1
9
Enable- only for CY28SRC04
Enable- only for CY28SRC04
Enable- only for CY28SRC02 and CY28SRC04
Enable- only for CY28SRC02 and CY28SRC04
Enable- only for CY28SRC01
Data byte 1 from slave – 8 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
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
Description
Block Read Protocol
Byte Read Protocol
Description
Description
CY28SRC02
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