Xilinx ML310 manual Jumpers, Voltage Jumper, J10 J11 Coupling

Board Hardware

Table 2-25:Front Panel Interface connector, J23

R

J23	Schem Signal	Description
Pin
15	KBINH	Tie this pin to GND to activate Keyboard inhibit, see
		ALi M1536D+ data sheet for more details
16	VCC5V	5V ATX power available to user
17	ATX_IDELED_R	ATX IDE access indicator, Tie this pin to Anode of
		user’s LED and Cathode to GND
18	VCC5V	5V ATX power available to user
19	PWR_SUPPLY_ON	Short this pin to GND to enable the ATX power
		supply. Note: This pin cannot be controlled by a
		momentary pulse.
20	GND	Ground
21	PB_SYSACE_RESET	Used to reset System ACE when driven low, as
		described earlier, “System ACE Reset, SW1”
22	GND	Ground
23	PB_FPGA_CPU_RESET	Used to reset CPU when driven low, as described
		earlier, “CPU Reset, SW2”
24	GND	Ground

Jumpers

MGT VTRX Termination Voltage Jumpers, J10 and J11

The MGT receive termination voltage, VTRX, on the top and bottom MGTs are jumper selectable via jumpers J10 (top) and J11 (bottom). The onboard regulated VTRX termination voltage can be configured for AC or DC coupling, 1.8V or 2.5V respectively.

Table 2-26shows the MGT VTRX voltage selections available on the ML310 board.

Table 2-26:Jumper Selection for Top and Bottom MGT VTRX Voltages,J10/J11

MGTs	VTRX	Voltage	Jumper	Jumper	MGT RX
			(J10)	(J11)	Coupling
All Top	MGT_VTT	1.8V	Shunt 2 - 3	Open	AC
	MGT_AVCC	2.5V	Shunt 1 - 2	Open	DC
All Bottom	MGT_VTT	1.8V	Open	Shunt 2 - 3	AC
	MGT_AVCC	2.5V	Open	Shunt 1- 2	DC
All	MGT_VTT	1.8V	Open	Open	Default
	MGT_AVCC	2.5V	Open	Open	Default

ML310 User Guide	www.xilinx.com	57
UG068 (v1.01) August 25, 2004	1-800-255-7778