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Features
Supported Enclosure Management Protocol
SCSI Enclosure Services-2 (SES-2) Rev.10
SFF-8485 Specification for Serial GPIO (SGPIO)
Bus Revision 0.7
SGPIO
One SGPIO port communicates enclosure man-
agement information, LED management and
drive presence for up to 4 drives
SF8448 interface signal for SAS
I2C reset from HBA / Serial data output bit stream
from initiator
Serial data input bit stream to initiator
I2C Serial clock/clock signal from initiator
I2C Serial Data / Last clock of a bit stream from
initiator
Controller type
Managed Elements
Drive Presence
2 LEDs for each slot
1 FAN
1 Buzzer
1 Temperature sensor
Supported Indications
Activity
Fail
Rebuild
Locate
Absolute Maximum Ratings
Operating Temperatures -55oC to +125oC
Storage Temperature -65oC to +150oC
Voltage on any pin except RESET# with respect to
ground -1.0V to VCC+0.5V
Voltage on RESET# with respect to ground -1.0
to +13.0V
Maximum operating Voltage 6.00V
DC Current per I/O Pin 40.0mA
DC Current VCC and Ground Pin 200.0mA
2/2
sAs/sAtA Enclosure Management Controller
Versatile: MG 9071 can be used in a variety of designs
HBA /SGPIO I
nterfAce
Each device has one SGPIO
port that can communicate
enclosure management in-
formation to HBAs with
SGPIO interface, support-
ing LED management and
drive presence for up to
4 drives. By adding more
MG9071 devices, the back-
I2CRST/
SDO
plane can be realized for 8,
12, 16 drives or more.
HBA /SeS-2 I
nterfAce
MG9071 is designed to work
with any SAS/SATA HBA
that support SES-2 protocol
over I2C. By adding more
MG9071 devices, the back-
plane can be realized for 8,
12, 16 drives or more.
ESB-2
S
S
S
S
MOTHERBOARD
D
D
C
L
O
O
L
O
0
1
K
A
D
I2CRST/
SCL/
SDA/
I2CRST/
SDI
SDO
SCLOCK
SLOAD
SDO
MG9071
0
1
2
3
0
0
1
2
3
4
© 2008 American Megatrends Inc. - All Rights Reserved. Product Specifications Subject to Change Without Notice
MegaRAC
Sideband Signals
Sideband Signals
connector 1
connector 2
S
S
S
S
S
D
D
C
L
D
O
I
L
O
O
K
A
D
SCL/
SDA/
I2CRST/
SDI
SCLOCK
SLOAD
SDO
MG9071
0
1
2
3
0
4
0
1
2
3
I2C Signals
HBA
S
S
Supporting
C
D
SES-2
L
A
Protocol
SCL_
SDA_
I2C_ADDR_SEL0
SCLOCK
SLOAD
I2C_ADDR_SEL1
MG9071
0
1
2
3
0
1
2
3
eSB2
The block diagram shows the use of MG9071
with an ESB-2 southbridge. By adding more
MG9071 devices, the backplane can be real-
ized for 8, 12, 16 drives or more.
SCL/
SDA/
SDI
SCLOCK
SLOAD
MG9071
1
2
3
5
American Megatrends Inc.
5555 Oakbrook Parkway - Suite 200
Norcross, GA 30093 | t: 770.246.8600
Sales & Product Information
sales@ami.com | t: 800.828.9264
Technical Support
support@ami.com | t: 770.246.8645
www.ami.com
All Trademarks are property of their respective owners
MG9071
®
S
S
S
HBA with
D
C
L
SGPIO
I
L
O
Interface
K
A
D
SCL/
SDA/
SDI
SCLOCK
SLOAD
MG9071
1
2
3
5
6
7
SCL_
SDA_
I2C_ADDR_SEL0
SCLOCK
SLOAD
I2C_ADDR_SEL1
MG9071
0
1
2
3
0
1
2
3
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