2–68
Chapter 2: Board Components
Power Supply
Stratix III 3SL150 Development Board
Altera Corporation
Power Measurement
Ten power supply rails have on-board voltage and current-sense capabilities. These
devices and rails are split from the primary supply plane by a low-value sense resistor
for the A/D converter to measure voltage and current.
shows the targeted rails where
Measured Net Name
column shows the name
of the rail being measured, and the devices attached to that are listed under
Power Pin Name
and
Description
columns. If no subnet is named, then the power is the
total output power for that voltage.
Table 2–59. Power Measurement Rails
Number
Measured Net Name
Power Pin Name
Description
1
VCCL
VCCL
FPGA core power
2
1.
1V_VCC
VCC
FPGA I/O registers power
VCCD_PLL
FPGA PLL digital power
3
2.
5V_A
VCCPT
FPGA programmable power technology
VCCA_PLL
FPGA PLL analog power
4
2.5V_VCCPD
VCCPD
Pre-driver power for I/Os
5
2.5V_VCCPGM
VCCPGM
Power for configuration I/Os
7
1.8V_S3
VCCIO1A
,
VCCIO1C
,
VCCIO8A
,
VCCIO8B
,
VCCIO8C
FPGA I/O power banks 1, 8
VCCIO3A
,
VCCIO3B
,
VCCIO3C
,
VCCIO4B
,
VCCIO4C
FPGA I/O power banks 3, 4
8
2.5V_B2
VCCIO2A
,
VCCIO2C
FPGA I/O power bank 2
9
2.5V_B4A_B5_B6
VCCIO4A
,
VCCIO5A
,
VCCIO5C
,
VCCIO6A
,
VCCIO6C
FPGA I/O power banks 4a, 5, 6
10
1.5V_1.8V_B7
VCCIO7A
,
VCCIO7B
,
VCCIO7C
FPGA I/O power bank 7