Before revision: ] ] ] ] ] ] The SYSCLK must be driven by only one board in the system.
After revision: Types of signals SignalTypeA19..0Tri-stateD7..0Tri-stateCM2..0Tri-stateADRSTB*Tri-stateDATSTB*Tri-stateDATACK*Open collector / Open drainBUSRQ1..0*Open collector / Open drainTFRERR*Open collector / Open drainATNREQ7..0*Open collector / Open drainSYSRST*Open collector / Open drainSYSCLKTotem-poleBUSAK1..0*Totem-pole] ] ] ] ] ] The SYSCLK must be driven by only one board in the system.