SI53156 Datasheet, PDF (11/22 Pages) Silicon Laboratories – PCI-EXPRESS GEN 1, GEN 2, GEN 3, AND GEN 4 FANOUT BUFFER

Si53156
Bit
1
8:2
9
10
18:11
19
27:20
28
29
Table 5. Byte Read and Byte Write Protocol
Byte Write Protocol
Description
Start
Byte Read Protocol
Bit
Description
1 Start
Slave address–7 bits
8:2 Slave address–7 bits
Write
9 Write
Acknowledge from slave
10 Acknowledge from slave
Command Code–8 bits
18:11 Command Code–8 bits
Acknowledge from slave
19 Acknowledge from slave
Data byte–8 bits
20 Repeated start
Acknowledge from slave
27:21 Slave address–7 bits
Stop
28 Read
29 Acknowledge from slave
37:30 Data from slave–8 bits
38 NOT Acknowledge
39 Stop
Rev. 1.1
11