NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 243

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

5—Intel
Table 122. Process Call Protocol without PEC
Table 123. Process Call Protocol with PEC (Sheet 1 of 2)
November 2007
Order Number: 300641-004US
®
Note: For process call command, the value written into bit 0 of the Transmit Slave Address
6300ESB ICH
Process Call
The process call is so named because a command sends data and waits for the slave to
return a value dependent on that data. The protocol is simply a Write Word followed by
a Read Word, but without a second command or stop condition.
When programmed for the Process Call command, the Intel
the Transmit Slave Address, Host Command, DATA0 and DATA1 registers. Data
received from the device is stored in the DATA0 and DATA1 registers. The Process Call
command with I2C_EN set and the PEC_EN bit set produces undefined results.
Software must force either I2C_EN or PEC_EN to 0 when running this command. The
format of the protocol is shown in
Register (SMBus I/O register, offset 04h) needs to be 0.
11–18
2–8
Bit
10
1
9
11–18
20–27
29–36
39–45
48–55
57–64
2–8
Bit
10
19
28
37
38
46
47
56
65
66
1
9
Start
Slave Address - 7 bits
Write
Acknowledge from Slave
Command code - 8 bits
Start
Slave Address - 7 bits
Write
Acknowledge from Slave
Command code - 8 bits
Acknowledge from slave
Data byte Low - 8 bits
Acknowledge from slave
Data Byte High - 8 bits
Acknowledge from slave
Repeated Start
Slave Address - 7 bits
Read
Acknowledge from slave
Data Byte Low from slave - 8
bits
Acknowledge
Data Byte High from slave -
8 bits
NOT acknowledge
Stop
Description
Table 122
Description
and
Table
123.
®
Intel
6300ESB ICH transmits
®
6300ESB I/O Controller Hub
243
DS