## page was renamed from M-LinkPinout

M-Link mezzanine use bidirectional 18-bit source-syncronous data bus. It has 8 asyncronous control/status signals.

M-Link is electrically compatible with 3.3V [[http://hsi.web.cern.ch/hsi/s-link/spec/spec/s-link-1.html|S-Link]] LDC. Power, clock and data signals come on same connector pins as in S-Link. S-Link support is provided by firmware option.
== M-Link mezzanine connector pinout ==
||<tablewidth="494px" tablestyle="border-collapse: collapse; width: 370pt;"rowstyle="height: 15.6pt;"width="64px" height="21px" style="height: 15.6pt; width: 48pt;">Pin||<width="84px" style="width: 63pt;">Signal||<width="64px" style="width: 48pt;">Dir||<width="64px" style="width: 48pt;"> ||<width="64px" style="width: 48pt;">Pin||<width="90px" style="width: 67pt;">Signal||<width="64px" style="width: 48pt;">Dir||
||1||RXCLK||in|| ||2||RXD<0>||in||
||3||+3.3V|| || ||4||RXD<1>||in||
||5||STAT4||out|| ||6||RXD<3>||in||
||7||RXD<2>||in|| ||8||GND|| ||
||9||GND|| || ||10||STAT3||out||
||11||TXCLK||out|| ||12||GND|| ||
||13||GND|| || ||14||RXD<4>||in||
||15||RXD<5>||in|| ||16||GND|| ||
||17||RXD<6>||in|| ||18||RXD<8>||in||
||19||RXD<7>||in|| ||20||RXD<10>||in||
||21||RXD<9>||in|| ||22||+3.3V|| ||
||23||GND|| || ||24||RXD<11>||in||
||25||RXD<12>||in|| ||26||RXD<13>||in||
||27||RXD<14>||in|| ||28||GND|| ||
||29||RXD<15>||in|| ||30||RXEN||in||
||31||GND|| || ||32||CTRL1||in||
||33||RXER||in|| ||34||CTRL3||in||
||35||TXER||out|| ||36||GND|| ||
||37||TXDV||out|| ||38||TXD<15>||out||
||39||+3.3V|| || ||40||TXD<14>||out||
||41||TXD<13>||out|| ||42||TXD<12>||out||
||43||TXD<11>||out|| ||44||GND|| ||
||45||TXD<10>||out|| ||46||TXD<9>||out||
||47||GND|| || ||48||TXD<8>||out||
||49||TXD<6>||out|| ||50||TXD<7>||out||
||51||TXD<5>||out|| ||52||+3.3V|| ||
||53||TXD<3>||out|| ||54||TXD<4>||out||
||55||GND|| || ||56||TXD<2>||out||
||57||TXD<1>||out|| ||58||STAT2||out||
||59||TXD<0>||out|| ||60||GND|| ||
||61||CTRL4||in|| ||62||CTRL5||in||
||63||+3.3V|| || ||64||CTRL6||in||

Direction is specified for mezzanine card.

== M-Link Signal Description ==
||signal||description||
||+3.3V||Power, +3.3V ±5%, 3 A maximum total current||
||GND||Ground||
||RXCLK||Receive clock||
||RXD||Receive data, 16 bits||
||RXDV||Receive data valid||
||RXER||Receive data error||
||STAT||Status lines||
||TXCLK||Transmit clock||
||TXD||Transmit data, 16 bits||
||TXDV||Transmit data valid||
||TXER||Transmit data error||
||CTRL||Control lines||

== CTRL/STAT Signal Assignment ==
||CTRL1||Loopback Enable, active high||
||CTRL6||Suspend mezzanine data||

----
[[CategoryMlink|MLink]]