Table of Contents
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
If you have an old Netus G20 blue version please go to this article.
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 |
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