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Optical M-Link 
M-Link mezzanine carrier CCB-PCIe is a PCI-Express M-Link interface.
It is available in two variants: copper and optical interface card and mezzanine carrier board.
JTAG connector X3
pin |
signal |
1 |
RESET |
2 |
TMS |
3 |
TDI |
4 |
TDO |
5 |
TCK |
6 |
Ground |
7 |
|
8 |
JTAG Cable
CCB-PCIe pin |
signal |
device pin |
1 |
RESET |
8 |
2 |
TMS |
7 |
3 |
TDI |
6 |
4 |
TDO |
5 |
5 |
TCK |
4 |
6 |
no connect |
3 key |
7 key |
no connect |
2 |
8 |
ground |
1 |