SBC Axel SBC/Interfaces and Connectors/JTAG
History | |||
---|---|---|---|
Version | Issue Date | Notes | |
1.0.0 | Sep 2020 | New layout documentation |
On board JTAG connector[edit | edit source]
JTAG signals are routed to a dedicated connector on the AXEL Lite PCB.
The connector is placed on the top side of the PCB, at the upper-right corner (please see the picture below).
J7 - Connector's pinout[edit | edit source]
J7 footprint mates with Samtec FSI-110-03-G-S connector. The following table reports the connector's pinout:
Pin# | Pin name | Function | Notes |
---|---|---|---|
1 | DGND | - | - |
2 | JTAG_TCK | - | - |
3 | JTAG_TMS | - | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
4 | JTAG_TDO | - | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
5 | JTAG_TDI | - | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
6 | JTAG_nTRST | - | 10K pull-up to 3V3 (BOARD_PGOOD driven signal) |
7 | CPU_PORn | - | - |
8 | N.C. | - | - |
9 | N.C. | - | - |
10 | JTAG_VREF | - | 3V3 (BOARD_PGOOD driven signal) |