1.4 IO Pins Assignment
The RTL8773E Motherboard is designed to fit RTL8773E EVB daughter board. All
common interfaces installed on evaluation board are available to each IO pin of
RTL8773E chip by connecting control jumpers to different RTL8773E chip's IOs.
The default pin assignment is performed by directly shorting pins of RTL8773E
Motherboard and common interfaces on control jumper.
For example, J3 is used for LEDs' and KEY s' control. Short Pin1 and Pin2 on control
jumper, LED1 is controlled by M0_1 of RTL8773E Motherboard
Table 1-1 Default Pin Assignment for Common Interfaces on RTL8773E Motherboard
EVB Daughter board
M0_0/ADC_0
M0_1/ADC_1
M0_2/ADC_2
M0_3/ADC_3
M0_4/ADC_4
M0_5/ADC_5
M0_6/ADC_6
M0_7/ADC_7
M1_0
M1_1
M1_2
M1_3
M1_4
M1_5
M1_6
M1_7
M2_0
M2_1
J33
1
2
3
Pin
Description
1
VDDIO1
2
FT_VDDIO
3
VDD102
Mother board socket name
M0_0/THM_DET
M0_1/LED1&KEY1
M0_2
M0_3
M0_4
M0_5
M0_6
M0_7
M1_0/LED2&KEY2
M1_1/KEY0
M1_2/KEY1
M1_3/LED4
M1_4/KEY2
M1_5/KEY3
M1_6/JTAG_TDO
M1_7
M2_0
M2_1/LED3&KEY3
·Copyright 2019 Realtek Semiconductor Corporation.
All Rights Reserved.
RTL8773E Motherboard User Guide
J20
4
1
2
3
Pin
Description
1
MICBIAS
2
MIC4_N
3
MIC4_P
4
GND
9
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