Block Write-Block Read Process Call Protocol With/Without Pec - Intel 6300ESB Datasheet

Table 127. Block Write-Block Read Process Call Protocol With/Without PEC
Bit
1
2-8
9
10
11-18
19
20-27
28
29-36
37
38-45
46
...
...
®
Intel 6300ESB I/O Controller Hub
DS
248
Start
Slave Address - 7 bits
Write
Acknowledge from Slave
Command code - 8 bits
Acknowledge from slave
Data Byte Count (M) - 8 bits
Acknowledge from Slave
Data Byte (1) - 8 bits
Acknowledge from slave
Data Byte (2) - 8 bits
Acknowledge from slave
...
Data Byte (M) - 8 bits
Acknowledge from slave
Repeated Start
Slave Address - 7 bits
Read
Acknowledge from slave
Data Byte Count (N) from slave – 8 bits
Acknowledge from master
Data Byte (1) from slave – 8 bits
Acknowledge from master
Data Byte (2) from slave – 8 bits
Acknowledge from master
...
Data Byte Count (N) from slave – 8 bits
Acknowledge from master (Skip if no PEC)
PEC from slave (Skip if no PEC)
NOT acknowledge
Stop
Description
®
Intel 6300ESB ICH—5
November 2007
Order Number: 300641-004US