MANO842 Mini ITX Motherboard
16
Board and Pin Assignments
2.4.12
GPIO Header (CN17)
This header (5x2-pin p=2.54mm) is for digital I/O interface.
Note
[*]
:
“H” or “L” means the default voltage is High or Low level, and GPIO
output is 5V.
2.4.13
COM Connector (CN18)
This connector is for COM1 and COM2 serial port interfaces which are selectable for
RS-232/422/485 mode. If you need COM1 to support RS-422 or RS-485, please refer to
section 2.3.5. If you need COM2 to support RS-422 or RS-485, please refer to section
2.3.6. The pin assignments of RS-232/422/485 are listed in table below.
Pin Signal
Pin Signal
1
SIO_GPO74
(0xA06, Bit4, H)
[*]
2
SIO_GPI70
(0xA06, Bit0)
3
SIO_GPO75
(0xA06, Bit5, H)
[*]
4
SIO_GPI71
(0xA06, Bit1)
5
SIO_GPO76
(0xA06, Bit6, H)
[*]
6
SIO_GPI72
(0xA06, Bit2)
7
SIO_GPO77
(0xA06, Bit7, H)
[*]
8
SIO_GPI73
(0xA06, Bit3)
9
GND
10
GND
Pin RS-232
RS-422
RS-485
1
DCD#
TX-
485-
2
RXD
TX+
485+
3
TXD
RX+
N/C
4
DTR#
RX-
N/C
5
GND
GND
GND
6
DSR#
N/C
N/C
7
RTS#
N/C
N/C
8
CTS#
N/C
N/C
9
RI#
N/C
N/C
Summary of Contents for MANO842 Series
Page 1: ...MANO842 Series Intel Bay Trail SoC CPU Mini ITX Motherboard User s Manual ...
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Page 10: ...MANO842 Mini ITX Motherboard 4 Introduction 1 4 Block Diagram ...
Page 28: ...MANO842 Mini ITX Motherboard 22 Hardware Description This page is intentionally left blank ...
