AXIOMTEK MMB501, User Manual

Page: 26 / 67

MMB501 LGA1151 ATX Motherboard
20 Board and Pin Assignments
2.4.11 GPIO Header (CN22)
This header (5x2-pin p=2.00mm) is for digital I/O interface.
Note
[*]
:
“H” or “L” means the default voltage is High or Low level, and GPIO
output is 5V. The GPI or GPO and High or Low level can be selected with
BIOS setting.
2.4.12 Internal USB 3.0 Connector (CN23)
The CN23 is a 19-pin internal connector for installing versatile USB 3.0 compliant
peripherals.
Pin Signal Pin Signal
1
SIO_GPO70
(0xA06 Bit0, H)
2
SIO_GPO77
(0xA06 Bit7, H)
3
SIO_GPO71
(0xA06 Bit1, H)
4
SIO_GPO76
(0xA06 Bit6, H)
5
SIO_GPO72
(0xA06 Bit2, H)
6
SIO_GPO75
(0xA06 Bit5, H)
7
SIO_GPO73
(0xA06 Bit3, H)
8
SIO_GPO74
(0xA06 Bit4, H)
[*]
9 VCC5 10 GND
Pin Signal Pin Signal
1 +5 V_DUAL
2 SSRX- 19 +5 V_DUAL
3 SSRX+ 18 SSRX-
4 GND 17 SSRX+
5 SSTX- 16 GND
6 SSTX+ 15 SSTX-
7 GND 14 SSTX+
8 USB- 13 GND
9 USB+ 12 USB-
10 ID 11 USB+