Northern Software
NSDSP Programmer
NSDSP Chip
Pinout
3.3V USB Powered 3.3V Board Powered 5V USB Powered 5V Board Powered 1.8V and 2.5V Buffered Isolated Dual-Chip SetupNSDSP Pinout
In the table below, the NSDSP column refers to the NSDSP pin name from the above diagram. These pin names reflect NSDSP functionality. The Microchip column refers to Microchip pin name for underlying PIC16(L)F1454 device. These names do not reflect NSDSP functionality and are listed for reference only.
For the description of NSDSP functionality, click here.
| NSDSP | Microchip | Description |
|---|---|---|
| VDD | VDD | Positive power supply. Must be 3.3V for PIC16LF1454 or 5V for PIC16F1454. |
| PGM/RTS/AMCLR | RA5 | Output. In Programming/Debug mode - LVP programming pin. In UART mode - RTS (Ready To Send) signal. This pin can also be configured as AMCLR in dual-chip setup. |
| CTS | RA4 | Input. UART CTS (Clear To Send) signal. Can also be used as a trigger by NSDSP Gang Programmer |
| EN | RA3 | Input. When this pin is driven low, NSDSP resets and enters low power sleep mode until EN pin is driven high. NSDSP must only be enabled when USB connection is present. |
| RX | RC5 | Input. UART receive pin. Can also be used as a trigger by NSDSP Gang Programmer |
| TX | RC4 | Output. UART transmit pin. |
| MCLR | RC3 | Output. Must be connected to the MCLR pin of target device during programming and debugging. |
| PGDO | RC2 | Output. ICSP Data output. Used during programming and debugging. |
| PGDI | RC1 | Input. ICSP Data input. Used during programming and debugging. |
| PGC | RC0 | Bidirectional. ICSP Clock. Used during programming and debugging. Configured as output except in Debug mode for dsPIC33E/PIC24E devices. |
| VUSB3V3 | VUSB3V3 | USB 3.3V. See NSDSP connection schematics and Microchip datasheet. |
| D- | D- | Negative USB data line. |
| D+ | D+ | Positive USB data line. |
| VSS | VSS | Ground. |
| NC | NC | Not connected. |
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