25
Chapter 2
HARDWARE INSTALLATION
User's Manual | KD630
SMBus Connector
X
Internal I/O Connectors
LPC Connector
X
Internal I/O Connectors
1
5
C
7
Battery
S1
S3
2
2
10
9
2
10
9
1
M.2 M Key
1
2
5
GND
SMB_DATA
SMB_CLK
3V3DU
SMB_ALERT
J13 SMBus
The SMBus (System Management Bus) connector is used to connect SMBus devices. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.
1
5
C
7
Battery
S1
S3
2
2
10
9
2
10
9
1
M.2 M Key
13
14
1
2
LPC Connector
The Low Pin Count Interface was defined by Intel
®
Corporation to facilitate the industry’s transi-
tion towards legacy free systems. It allows the integration of low-bandwidth legacy I/O compo-
nents within the system, which are typically provided by a Super I/O controller. Furthermore, it
can be used to interface firmware hubs, Trusted Platform Module (TPM) devices and embed-
ded controller solutions. Data transfer on the LPC bus is implemented over a 4 bit serialized
data interface, which uses a 33MHz LPC bus clock. For more information about LPC bus refer
to the Intel
®
Low Pin Count Interface Specification Revision 1.1’. The table below indicates the
pin functions of the LPC connector.
Pin Assignment
Pin Assignment
1
CLK
2
L_AD1
3
RST#
4
L_AD0
5
FRAME#
6
VCC3
7
LAD3
8
GND
9
LAD2
10
---
11
SERIRQ
12
GND
13
5V5B
14
5V
