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Chapter 3, Board layout – Lanner LEC-7110 User Manual

Page 15

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15

Board Layout

Chapter 3

Embedded and Industrial Computing

Dual USB Type A Connector (USB1/USB3):

USB 2.0 Pin Header (USB2):

MCU Communication Setting (SC3T1): MCU

communication setting jumper

MCU Debug Port (JTAG1): The MCU is provided by NXP’s

LPC1110 which is a ARM-Cortex-M0 based, low-cost 32-bit

microcontroller for 8/16-bit applications. It has a 4 KB on-

chip flash programming memory. The MCU and its flash

will help to retain the DIO last state even when the system

reboots or shuts down.

Clear CMOS jumper (JCCMOS1): It is for clearing the

CMOS memory.

Digital I/O (DI1)
Digital IN/OUT(DIO1) Connector: The 8 pins of digital
Input/Output (GPIO) support input and output operations
through the 2x5-pin terminal block.

TTL Level is +5V; Maximum input/output current for

each port is 100mA

Input/Output Voltage

Logic

Register

Digital_IN:

0~0.7V

Digital_Out:

0V

Low

0

Digital_IN:

2~5V

Digital_Out:

5V

High

1

The default BIOS value is 0 for digital_IN and 1for Digi-

tal_Out

PS/2 Keyboard and Mouse (KB1)

Pin No.

Description

Pin No.

Description

1

VCC

2

MSCLK

3

MSDATA

4

KEY

5

KBDATA

6

KEY

7

GND

8

KBCLK

Pin No. Pin Name

1

Input0

3

Input1

5

Input2

7

Input3

9

GND

Pin No. Pin Name

2

Output0

4

Output1

6

Output2

8

Output3

10

GND

Pin No.

Pin Name

1-2

Normal (Default)

2-3

Clear CMOS

1
2
3

Pin No.

Pin Name

1

USB_VCC1

2

-USB

3

+USB

4

GND

5

USB_VCC2

6

-USB

7

+USB

8

GND

1 2 3 4

5 6 7 8

Pin No. Pin Name

1

USB_VCC

3

KEY

5

-USB

7

+USB

9

GND

Pin No. Pin Name

2

GND

4

+USB

6

-USB

8

KEY

10

USB_VCC

9

7

5

3

1

10

8

6

4

2

PIN NO.

DESCRIPTION

1-3 2-4

Internal

RS232(COM3)

(default)

3-5 4-6

From JTAG1 RS232

(debug only)

2 4 6

1 3 5

1

2

3

4

5

6

7

8

Pin No.

Pin Name

Debug Tools

1

ICE_DATA

FOR ICE Debug

2

ICE_CLK

3

ICE_RST#

4

GND

5

MCU_PRO

6

MCU_VCC

7

ICE_RX

For Ext RS232

8

ICE_TX

1 3 5 7

2 4 6 8

1 3 5 7 9

2 4 6 8 10