B-10
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Appendix B
Hardware Configuration
General Purpose I/O Header
The JGPIO1 (General Purpose Input/Output) header is a general purpose I/O expander on a pin
header via the SMBus.
TPM/Port 80 Header
A Trusted Platform Module (TPM)/Port 80 header is located at JTPM1 to provide TPM support
and Port 80 connection. A TPM is a security device that supports encryption and authentication
in hard drives. It enables the motherboard to deny access if the TPM associated with the hard
drive is not installed in the system.
Table B-12.
JGPIO1 Header Pin Definitions
Pin
Definition
Pin
Definition
1
3.3 V Stby
2
GND
3
GP0
4
GP1
5
GP2
6
GP3
7
GP5
8
GP5
9
GP6
10
GP7
Table B-13.
Trusted Platform Module Header Pin Definitions
Pin
Definition
Pin
Definition
1
LCLK
2
GND
3
LFRAME#
4
<(Key)>
5
LRESET#
6
+5 V
7
LAD3
8
LAD2
9
+3.3 V
10
LAD1
11
LAD0
12
GND
13
SMB_CLK
14
SMB_DAT
15
+3 V Stby
16
SERIRQ
17
GND
18
CLKRUN#
19
LPCPD#
20
LDRQ#