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ML605 Hardware User Guide www.xilinx.com 69
UG534 (v1.2.1) January 21, 2010
Detailed Description
System Monitor Header (J35)
Figure 1-30 shows the pinout for the System Monitor 12-pin header. The header provides
user access to the analog power supply (A
Vdd
) and the 1.25V reference shown in
Figure 1-29, page 68. Access to the FPGA thermal diode and dedicated analog input
channel (Vp/Vn) is also provided on this header. The header can be used to connect user
specific analog signals and sensors to the system monitor.
The kelvin points for a 5 milliohm current sensing shunt in the FPGA 1V V
ccint
core supply
are also available on this header. By connecting header pins 9 to 11 and 10 to 12 using
jumpers, the system monitor can be used to monitor the FPGA core current and power
consumption. This can be used to collect useful power information about a particular
design or implementation.
X-Ref Target - Figure 1-30
Figure 1-30: System Monitor Header (J35)
System Monitor
Header
Dedicated Analog Inputs
FPGA
Thermal Diode
access
To Measure VCCINT Current:
Jumper on 9-11, 10-12
Connect Vccint shunt to Vp,Vn
Vccint_shunt_N
Vccint_shunt_P
C169
0.01UF
16V
X7R
FPGA_DX_N
FPGA_DX_P
NC
NC
SYSMON_AVDD
1.25V Reference
12
3
56
78
910
4
1211
J35
SYSMON_VP
SYSMON_VN
R232
100
1/16W
1%1%
1/16W
100
R233
AGND
Anti-alias Filter
UG534_37 _081209