Техническая Спецификация для Intel C2350 FH8065401488914
Модели
FH8065401488914
Volume 2—SMBus 2.0 Unit 0 - PCU—C2000 Product Family
System Host Controller
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
436
Order Number: 330061-002US
18.3.1.8
I
2
C Read Command
This command allows the SoC to perform block reads to certain I
2
C devices, such as
serial EEPROMs. The SMBus Block Read supports the 7-bit addressing mode only.
However, this does not allow access to devices using the I
2
C combined format that has
data bytes after the address. Typically these data bytes correspond to an offset
(address) within the serial memory chips.
Note:
For an I
2
The SoC continues reading data from the peripheral until the NAK is received.
Table 18-3. I
2
C Block Read
Bit
Description
1
Start
8:2
Slave address – 7 bits
9
Write
10
Acknowledge from slave
18:11
19
Acknowledge from slave
20
Repeated start
27:21
Slave address – 7 bits
28
Read
29
Acknowledge from slave
37:30
Data byte 1 from slave – 8 bits
38
Acknowledge
46:39
Data byte 2 from slave – 8 bits
47
Acknowledge
–
Data bytes from slave/acknowledge
–
Data byte N from slave – 8 bits
–
NOT acknowledge
–
Stop