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3.15
How to Switch between DPI and Ethernet Interfaces
DPI and Ethernet RGMII Interfaces share some GPIO pins. These two functions cannot exist simultaneously. Reflash code
and reboot system might be necessary when you switch between the interfaces. The zero resistors are used to switch
these two interfaces, the default configuration is Ethernet.
MT8390
GPIO
Table
GPIO147
GPIO148
GPIO131
GPIO132
GPIO133
GPIO134
GPIO135
GPIO136
GPIO137
GPIO138
GPIO139
GPIO140
GPIO141
GPIO142
GPIO143
GPIO144
GPIO145
GPIO146
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Table 3-9. Pin Mux for DPI and Ethernet RGMII Interface
Ethernet
0R
RGMII
Resistor
Net Name
GBE_COL
R4401
GBE_INTR
R4407
GBE_TXD3
R4417
GBE_TXD2
R4421
GBE_TXD1
R4427
GBE_TXD0
R4431
GBE_RXD3 R4435
GBE_RXD2 R4402
GBE_RXD1 R4408
GBE_RXD0 R4413
GBE_TXC
R4419
GBE_RXC
R4425
GBE_RXDV R4429
GBE_TXEN
R4433
GBE_MDC
R4403
GBE_MDIO R4409
GBE_TXER
R4414
GBE_RXER
R4422
NM
DPI
Resistor
Resistor
R4404 DPI_HSYNC_DTB R4401
R4410 DPI_VSYNC_DTB R4407
R4418
DPI_D0_DTB
R4423
DPI_D1_DTB
R4428
DPI_D2_DTB
R4432
DPI_D3_DTB
R4436
DPI_D4_DTB
R4405
DPI_D5_DTB
R4411
DPI_D6_DTB
R4415
DPI_D7_DTB
R4420
DPI_D8_DTB
R4426
DPI_D9_DTB
R4430
DPI_D10_DTB
R4434
DPI_D11_DTB
R4406
DPI_D12_DTB
R4412
DPI_D13_DTB
R4416
DPI_D14_DTB
R4424
DPI_D15_DTB
Genio 700 Evaluation Kit User Guide
NM
0R
Resistor
R4404
R4410
R4417
R4418
R4421
R4423
R4427
R4428
R4431
R4432
R4435
R4436
R4402
R4405
R4408
R4411
R4413
R4415
R4419
R4420
R4425
R4426
R4429
R4430
R4433
R4434
R4403
R4406
R4409
R4412
R4414
R4416
R4422
R4424
Genio 700 EVK
24
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