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Table 3-4. GPIO Mapping for Expansion IO (continued)
I2C0/TCA6416 Addr: 0x21
Function
Input/Output
Remarks
P16
PCIe Clk req Mux selection
Output
'0' - PCIe Clk req Path is selected
'1' - UB926 GPIO path is selected
P17
External Clock Generator Reset
Output
0’ – Expansion board is RESET
‘1’ – Expansion board is NOT
reset (default)
P20
ENET Expansion power down
Output
Reserved(ENET expansion is not
supported)
P21
ENET expansion reset
Output
Reserved(ENET expansion is not
supported)
P22
ENET expansion I2C Mux sel
Output
Reserved(ENET expansion is not
supported)
P23
ENET Expansion spare GPIO
Bi-Dir
Reserved(ENET expansion is not
supported)
P24
Reset to M.2 PCIe
Output
Reserved(ENET expansion is not
supported)
P25
User Dip Switch Input [SW3]
Input
0’ – Dip Switch SW2 position 10
set to OFF
‘1’ – Dip Switch SW2 position 10
set to ON
(Note Default is set via dip switch
SW3.10)
P26
User LED [LD9]
Output
‘0’ – LED [LD9] is ON
‘1’ – LED [LD9] is OFF (default)
P27
User LED [LD8]
Output
‘0’ – LED [LD8] is ON
‘1’ – LED [LD8] is OFF (default)
I2C3/TCA6408 Addr: 0x20
Function
DIR/Level
Remarks
P00
Audio Codec Enable/Reset
Output
‘0’ – Audio Codec is disabled/
Reset (default)
‘1’ – Audio Codec is enabled/
active
P01
Reserved / Unused
Bi-Dir
Reserved / Unused
P02
RESET to UB926
Output
Reserved (UB926 is not
supported)
P03
UB926 PLL lock status
Input
Reserved (UB926 is not
supported)
P04
Power enable to UB926
Output
Reserved (UB926 is not
supported)
P05
Tuner reset to UB926
Output
Reserved (UB926 is not
supported)
P06
Spare GPIO to UB926
Bi-Dir
Reserved (UB926 is not
supported)
P07
Unused
NA
NA
I2C4/TCA6408 Addr: 0x20
Function
DIR/Level
Remarks
P00
DisplayPort #0 Power Enable
Output
‘0’ – DisplayPort Power is
disabled (default)
‘1’ – DisplayPort Power is
enabled
P01
DisplayPort #1 Power Enable
Output
‘0’ – DisplayPort Power is
disabled (default)
‘1’ – DisplayPort Power is
enabled
Circuit Details
SPRUJ69 – DECEMBER 2022
Jacinto7 TDA4VE-Q1/TDA4VL-Q1/TDA4AL-Q1 Evaluation Module (EVM)
25
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