User`s manual

6.9.3 GPIO-3 (General Purpose Input/Output) 40pin connector

GPIO-3 connector

GPIO pin# Signal name Processor pin# GPIO pin# Signal name Processor pin#

1 5V - 2 GND -

3 3.3V - 4 GND -

5 RESET_N C14 6 PB3 B14

7 PH0 C6 8 PB4 A13

9 PH7/PB9 B4/C12 10 PB5 B13

11 PH9 D4 12 PB6 A12

13 PH10 A3 14 PB7 B12

15 PH11 B3 16 PB8/SATA-PWR-EN A11

17 PH12 C3 18 PB10 C11

19 PH13 A2 20 PB11 C10

21 PH14 B2 22 PB12 C9

23 PH15 A1 24 PB13 B11

25 PH16 B1 26 PB14 A10

27 PH17 C1 28 PB15 B10

29 PH18 C2 30 PB16 A9

31 PH19 D1 32 PB17 B9

33 PH20 D2 34 PH24 E3

35 PH21 D3 36 PH25 E4

37 PH22 E1 38 PH26 F3

39 PH23 E2 40 PH27 F4

6.9.4 GPIO-4 (General Purpose Input/Output) 20pin connector

GPIO-4 connector features the rest of the signals available and few additional signals that might

need testing.

GPIO-4 connector

GPIO pin# Signal name Processor pin# GPIO pin# Signal name Processor pin#

1 3.3V - 2 GND -

3 TVOUT3 AB17 4 NMI_N F5

5 TVIN0 AC18 6 MIC1OUTP AC22

7 TVIN1 AB18 8 MIC1OUTN AC23

9 TVIN2 AA17 10 MICIN2 AC21

11 TVIN3 Y17 12 GPIO2 Goes to AXP209

13 LINEINR AB21 14 GPIO3 Goes to AXP209

15 LINEINL AB20 16 PC7 J22

17 FMINR Y21 18 PC16/NWP M21*

19 FMINL Y20 20 PC17 F23

Signals marked with * are multiplexed with either a peripheral device or another connector. Ensure that the multiplexing is handled

properly on software and/or hardware level (else there would probably occur wrong levels, loss of data, etc).

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