5
ASC Breakout Board
Board Hardware Features
The ASC Breakout Board is provided with a limited set of circuits populated. The circuits populated on the breakout
board are described first. The breakout board also includes connections and footprints for evaluating the trimming
and Hot Swap functions of the ASC. These unpopulated circuits are described in the later part of this section.
L-ASC10 (ASC) Device
The L-ASC10 (Analog Sense and Control - 10 rail) is a Hardware Management (Power, Thermal, and Control
Plane Management) Expander designed to be used with Lattice FPGAs to implement the Hardware Management
Control function in a circuit board. The L-ASC10 (referred to as ASC) enables seamless scaling of power supply
voltage and current monitoring, temperature monitoring, sequence and margin control channels. The ASC includes
dedicated interfaces supporting the exchange of monitor signal status and output control signals with these central-
ized hardware management controllers. Up to eight ASC devices can be used to implement a hardware manage-
ment system.
The list below summarizes the hardware features of the ASC used on the breakout board. These features are also
shown in the block diagram in Figure 3. For detailed information on the operation of each feature, see DS1042,
L-
ASC10 Data Sheet
.
• Voltage Monitors (VMON) – Nine standard channels and one high voltage channel
• Current Monitors (IMON) – One standard voltage and one high voltage
• Temperature Monitors (TMON) – Two external and one internal
• Trim and Margin Circuits (TRIM) – Four channels
• General Purpose I/O (GPIO) – Nine channels
• High Voltage Outputs (HVOUT) – Four channels
• ASC Interface (ASC-I/F) – Connection to main FPGA
• I
2
C Interface – A/D Converter measurement interface
