#Netus G20 pinout All the signals available on the Netus G20 connectors are linked directly to the CPU except BATT IN (J1.17 - J3.18). Refer to the AT91SAM9G20 datasheet to know the CPU signals function ##J1 and J3 signals J1 (top side) and J3 (bottom side) connectors share the same signals.
Top Bottom CPU Signal Function Type Comments
J1.1 J3.1 3V3 Power
J1.2 J3.2 3V3 Power
J1.3 J3.3 JTAG TDO Test data out Output
J1.4 J3.4 HDMA
J1.5 J3.5 JTAG TDI Test data in Input
J1.6 J3.6 HDPA
J1.7 J3.7 JTAG NTRST Test reset signal Input
J1.8 J3.8 GND Ground Ground
J1.9 J3.9 JTAG RTCK Return test clock Output
J1.10 J3.10 HDPB
J1.11 J3.11 JTAG SEL JTAG Selection Input
J1.12 J3.12 HDMB
J1.13 J3.13 JTAG TCK Test clock Input
J1.14 J3.14 GND Ground Ground
J1.15 J3.15 JTAG TMS Test mode select Input
J1.16 J3.16 DDP
J1.17 J3.17 BATT IN Battery backup 3V input
J1.18 J3.18 DDM
J1.19 J3.19 1V0 Power
Top Bottom CPU Signal Function Type Comments
J1.20 J3.20 1V0 Power
J1.21 J3.21 SHDN# Shutdown control Output
J1.22 J3.22 WAKE UP Wake-up input Input
J1.23 J3.23 NRST
J1.24 J3.24 GND Ground Ground
J1.25 J3.25 PB19 Parallel IO Controller B I/O Pulled-up input at reset
J1.26 J3.26 PB18 Parallel IO Controller B I/O Pulled-up input at reset
J1.27 J3.27 PB17 Parallel IO Controller B I/O Pulled-up input at reset
J1.28 J3.28 PB16 Parallel IO Controller B I/O Pulled-up input at reset
J1.29 J3.29 PB15 Parallel IO Controller B I/O Pulled-up input at reset
J1.30 J3.30 PB14 Parallel IO Controller B I/O Pulled-up input at reset
J1.31 J3.31 PB9 Parallel IO Controller B I/O Pulled-up input at reset
J1.32 J3.32 PB8 Parallel IO Controller B I/O Pulled-up input at reset
J1.33 J3.33 PB7 Parallel IO Controller B I/O Pulled-up input at reset
J1.34 J3.34 PB6 Parallel IO Controller B I/O Pulled-up input at reset
J1.35 J3.35 PB5 Parallel IO Controller B I/O Pulled-up input at reset
J1.36 J3.36 PB4 Parallel IO Controller B I/O Pulled-up input at reset
J1.37 J3.37 PB3 Parallel IO Controller B I/O Pulled-up input at reset
J1.38 J3.38 PB2 Parallel IO Controller B I/O Pulled-up input at reset
J1.39 J3.39 PB1 Parallel IO Controller B I/O Pulled-up input at reset
Top Bottom CPU Signal Function Type Comments
J1.40 J3.40 PB0 Parallel IO Controller B I/O Pulled-up input at reset
J1.41 J3.41 1V8 Power
J1.42 J3.42 1V8 Power
J1.43 J3.43 PC15 Parallel IO Controller C I/O Pulled-up input at reset
J1.44 J3.44 PC14 Parallel IO Controller C I/O Pulled-up input at reset
J1.45 J3.45 PC13 Parallel IO Controller C I/O Pulled-up input at reset
J1.46 J3.46 PC12 Parallel IO Controller C I/O Pulled-up input at reset
J1.47 J3.47 PC11 Parallel IO Controller C I/O Pulled-up input at reset
J1.48 J3.48 PC10 Parallel IO Controller C I/O Pulled-up input at reset
J1.49 J3.49 PC9 Parallel IO Controller C I/O Pulled-up input at reset
J1.50 J3.50 PC8 Parallel IO Controller C I/O Pulled-up input at reset
J1.51 J3.51 PC7 Parallel IO Controller C I/O Pulled-up input at reset
J1.52 J3.52 PC6 Parallel IO Controller C I/O Pulled-up input at reset
J1.53 J3.53 PC5 Parallel IO Controller C I/O Pulled-up input at reset
J1.54 J3.54 PC4 Parallel IO Controller C I/O Pulled-up input at reset
J1.55 J3.55 FREE1 Available
J1.56 J3.56 FREE2 Available
J1.57 J3.57 FREE3 Available
J1.58 J3.58 FREE4 Available
J1.59 J3.59 GND Ground Ground
J1.60 J3.60 GND Ground Ground

J2 and J4 signals

J2 (top side) and J4 (bottom side) connectors share the same signals.

Top Bottom Signal name Function Type Comments
J2.1 J4.1 3V3
J2.2 J4.2 3V3
J2.3 J4.3 PA31 Parallel IO Controller A I/O Pulled-up input at reset
J2.4 J4.4 PA30 Parallel IO Controller A I/O Pulled-up input at reset
J2.5 J4.5 PA29 Parallel IO Controller A I/O Pulled-up input at reset
J2.6 J4.6 PA28 Parallel IO Controller A I/O Pulled-up input at reset
J2.7 J4.7 PA27 Parallel IO Controller A I/O Pulled-up input at reset
J2.8 J4.8 PA26 Parallel IO Controller A I/O Pulled-up input at reset
J2.9 J4.9 PA25 Parallel IO Controller A I/O Pulled-up input at reset
J2.10 J4.10 PA24 Parallel IO Controller A I/O Pulled-up input at reset
J2.11 J4.11 PA23 Parallel IO Controller A I/O Pulled-up input at reset
J2.12 J4.12 PA22 Parallel IO Controller A I/O Pulled-up input at reset
J2.13 J4.13 PA21 Parallel IO Controller A I/O Pulled-up input at reset
J2.14 J4.14 PA20 Parallel IO Controller A I/O Pulled-up input at reset
J2.15 J4.15 PA19 Parallel IO Controller A I/O Pulled-up input at reset
J2.16 J4.16 PA18 Parallel IO Controller A I/O Pulled-up input at reset
J2.17 J4.17 PA17 Parallel IO Controller A I/O Pulled-up input at reset
J2.18 J4.18 PA16 Parallel IO Controller A I/O Pulled-up input at reset
J2.19 J4.19 PA15 Parallel IO Controller A I/O Pulled-up input at reset
Top Bottom Signal name Function Type Comments
J2.20 J4.20 PA14 Parallel IO Controller A I/O Pulled-up input at reset
J2.21 J4.21 PA13 Parallel IO Controller A I/O Pulled-up input at reset
J2.22 J4.22 PA12 Parallel IO Controller A I/O Pulled-up input at reset
J2.23 J4.23 PA11 Parallel IO Controller A I/O Pulled-up input at reset
J2.24 J4.24 PA10 Parallel IO Controller A I/O Pulled-up input at reset
J2.25 J4.25 PA9 Parallel IO Controller A I/O Pulled-up input at reset
J2.26 J4.26 PA8 Parallel IO Controller A I/O Pulled-up input at reset
J2.27 J4.27 PA7 Parallel IO Controller A I/O Pulled-up input at reset
J2.28 J4.28 PA6 Parallel IO Controller A I/O Pulled-up input at reset
J2.29 J4.29 PA5 Parallel IO Controller A I/O Pulled-up input at reset
J2.30 J4.30 PA4 Parallel IO Controller A I/O Pulled-up input at reset
J2.31 J4.31 PA3 Parallel IO Controller A I/O Pulled-up input at reset
J2.32 J4.32 PA2 Parallel IO Controller A I/O Pulled-up input at reset
J2.33 J4.33 PA1 Parallel IO Controller A I/O Pulled-up input at reset
J2.34 J4.34 PA0 Parallel IO Controller A I/O Pulled-up input at reset
J2.35 J4.35 PB31 Parallel IO Controller B I/O Pulled-up input at reset
J2.36 J4.36 PB30 Parallel IO Controller B I/O Pulled-up input at reset
J2.37 J4.37 PB29 Parallel IO Controller B I/O Pulled-up input at reset
J2.38 J4.38 PB28 Parallel IO Controller B I/O Pulled-up input at reset
J2.39 J4.39 PB27 Parallel IO Controller B I/O Pulled-up input at reset
Top Bottom Signal name Function Type Comments
J2.40 J4.40 PB26 Parallel IO Controller B I/O Pulled-up input at reset
J2.41 J4.41 PB25 Parallel IO Controller B I/O Pulled-up input at reset
J2.42 J4.42 PB24 Parallel IO Controller B I/O Pulled-up input at reset
J2.43 J4.43 PB23 Parallel IO Controller B I/O Pulled-up input at reset
J2.44 J4.44 PB22 Parallel IO Controller B I/O Pulled-up input at reset
J2.45 J4.45 PB21 Parallel IO Controller B I/O Pulled-up input at reset
J2.46 J4.46 PB20 Parallel IO Controller B I/O Pulled-up input at reset
J2.47 J4.47 PB13 Parallel IO Controller B I/O Pulled-up input at reset
J2.48 J4.48 PB12 Parallel IO Controller B I/O Pulled-up input at reset
J2.49 J4.49 PB11 Parallel IO Controller B I/O Pulled-up input at reset
J2.50 J4.50 PB10 Parallel IO Controller B I/O Pulled-up input at reset
J2.51 J4.51 PC3 Parallel IO Controller C I/O Pulled-up input at reset
J2.52 J4.52 PC2 Parallel IO Controller C I/O Pulled-up input at reset
J2.53 J4.53 PC1 Parallel IO Controller C I/O Pulled-up input at reset
J2.54 J4.54 PC0 Parallel IO Controller C I/O Pulled-up input at reset
J2.55 J4.55 AGND
J2.56 J4.56 AGND
J2.57 J4.57 AVDD
J2.58 J4.58 VREF
J2.59 J4.59 GND
J2.60 J4.60 GND