Whirlybird: Difference between revisions

m →M.2 (NGFF) Key E: U16:P0_5 corrected to Pin 54
→PI4IOE5V6416 I2C GPIO Expander: Most of the I/O connections
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{| class="wikitable"
{| class="wikitable"
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! Pin # !! Name !! Description
! Pin # !! Name !! Description|Function
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|-
| 1 || P0_0 || Port 0 input/output 0
| 1 || P0_0 || I/O M3 via R51
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| 2 || P0_1 || Port 0 input/output 1
| 2 || P0_1 || I/O U6 & U8 Pin 3 (TP12,TP70)
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| 3 || P0_2 || Port 0 input/output 2
| 3 || P0_2 || I/O U56
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| 4 || P0_3 || Port 0 input/output 3
| 4 || P0_3 || I/O M5 Pin 67
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| 5 || P0_4 || Port 0 input/output 4
| 5 || P0_4 || GND M5 Pin 54
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| 6 || P0_5 || Port 0 input/output 5
| 6 || P0_5 || U15 Pin 4 via R44 (TP67)
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| 7 || P0_6 || Port 0 input/output 6
| 7 || P0_6 || P3 Pin 6 (TP68)
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| 8 || P0_7 || Port 0 input/output 7
| 8 || P0_7 || (TP62)
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| 9 || Vss || Ground
| 9 || Vss || Ground
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| 10 || P1_0 || Port 1 input/output 0
| 10 || P1_0 || U54 Pin 4 via R80 & R34 (TP73)
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| 11 || P1_1 || Port 1 input/output 1
| 11 || P1_1 || J8 Pin 10 & R74 to GND (TP74)
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| 12 || P1_2 || Port 1 input/output 2
| 12 || P1_2 || ???
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| 13 || P1_3 || Port 1 input/output 3
| 13 || P1_3 || ???
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| 14 || P1_4 || Port 1 input/output 4
| 14 || P1_4 || ??? via R48
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| 15 || P1_5 || Port 1 input/output 5
| 15 || P1_5 || U17 Pin 1 (TOUT) & J9 & Pull-up via R7
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| 16 || P1_6 || Port 1 input/output 6
| 16 || P1_6 || U1 Pin 4 (TP2,TP81)
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| 17 || P1_7 || Port 1 input/output 7
| 17 || P1_7 || J9 (TP80)
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| 18 || ADDR || Address input, to Vdd or ground
| 18 || ADDR || Address input, to Vdd or ground
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| 21 || Vdd(P) || Power for Port P
| 21 || Vdd(P) || Power for Port P
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| 22 || INT || Interrupt output, connect to Vdd via pull-up resistor
| 22 || INT || ESP32 GPIO8. Interrupt output, connect to Vdd via pull-up resistor
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| 23 || Vdd(I2C) || Power from I2C-bus, provides voltage-level translation
| 23 || Vdd(I2C) || Power from I2C-bus, provides voltage-level translation