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Publication No.
500-9300007876-000
Rev. C.0
Functional Description 73
6.12.2 SMBus
The SMBus is an I
2
C-based bus that provides a standardized interconnection
between the BMC and other I
2
C devices on the chassis. The standardized
connection to the backplane is shown below:
6.13 Elapsed Time Indicator
A Dallas DS1682 Elapsed Time Indicator (ETI) logs the amount of time the XVR16
has been powered and the number of power cycles. Power up time is only
recorded when the platform is fully powered and not in State S3, S4 or S5. Power
cycle events are only recorded when the backplane VS3 (+5V) power rail
transitions from on to off.
The ETI is intended only to be used by Abaco software drivers. See the relevant
software manual for details.
LINK
For more details on the ETI device, see
www.maxim-ic.com
.
6.14 Keyboard and Mouse
The communication between the PC and the keyboard and mouse is managed by
a USB connection. A legacy 8042 interface is available via emulation for USB
unaware OS.
6.15 SATA Interface
The XVR16 offers
up to six SATA Gen1 and Gen2 channels that can transfer up to
300 MByte/s.
SATA Ports:
•
SATA0 to onboard hard drive option
•
SATA1 to optional eSATA GEN3 Front Panel Port
•
SATA2 to Rear P0*
•
SATA3 to Rear P0*
•
SATA4 to SSD2
•
SATA5 to SSD1
NOTE
*SATA signals at the rear are shared with PMC1 I/O signals.
Rear SATA is not available in the Full PMC1 I/O configuration.
Ensure that the PMC1 I/O pins on the PMC module do not conflict with the SATA signals.
Table 6-3 SMBus Backplane Pin Assignments
P1
Name
Description
D19
SMB_SCL
Serial
Clock
D21
SMB_SDA
Serial
Data
D23
\SMB_ALERT
SMBus Alert signal to IPMI controller