Page History
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JTAG Signal | B2B Connector | 12-pin header JX1 |
|---|---|---|
| TMS | JB2-94 | 12 |
| TDO | JB2-98 | 8 |
| TDI | JB2-96 | 10 |
| TCK | JB2-100 | 4 |
Micro SD Card Socket
Micro SD Card socket is not directly wired to the B2B connector pins, but through a Texas Instruments TXS02612 SDIO port expander, which is needed for voltage translation due to the different voltage levels of the Micro SD Card and MIO bank 501 of the Xilinx Zynq 7000 chip. The Micro SD Card has 3.3 V signal voltage-level, but the MIO Bank 501 on the Xilinx Zynq 7000 chip is set to 1.8 V.
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