ProASIC3 DC and Switching Characteristics
2-12
Revision 13
Total Dynamic Power Consumption—PDYN
PDYN = PCLOCK + PS-CELL + PC-CELL + PNET + PINPUTS + POUTPUTS + PMEMORY + PPLL
Global Clock Contribution—PCLOCK
PCLOCK = (PAC1 + NSPINE*PAC2 + NROW*PAC3 + NS-CELL* PAC4) * FCLK
NSPINE is the number of global spines used in the user design—guidelines are provided in the
"Spine Architecture" section of the Global Resources chapter in the ProASIC3 FPGA NROW is the number of VersaTile rows used in the design—guidelines are provided in the "Spine
FCLK is the global clock signal frequency.
NS-CELL is the number of VersaTiles used as sequential modules in the design.
PAC1, PAC2, PAC3, and PAC4 are device-dependent.
Sequential Cells Contribution—PS-CELL
PS-CELL = NS-CELL * (PAC5 + 1 / 2 * PAC6) * FCLK
NS-CELL is the number of VersaTiles used as sequential modules in the design. When a multi-tile
sequential cell is used, it should be accounted for as 1.
FCLK is the global clock signal frequency.
Combinatorial Cells Contribution—PC-CELL
PC-CELL = NC-CELL* 1 / 2 * PAC7 * FCLK
NC-CELL is the number of VersaTiles used as combinatorial modules in the design.
FCLK is the global clock signal frequency.
Routing Net Contribution—PNET
PNET = (NS-CELL + NC-CELL) * 1 / 2 * PAC8 * FCLK
NS-CELL is the number of VersaTiles used as sequential modules in the design.
NC-CELL is the number of VersaTiles used as combinatorial modules in the design.
FCLK is the global clock signal frequency.
I/O Input Buffer Contribution—PINPUTS
PINPUTS = NINPUTS * 2 / 2 * PAC9 * FCLK
NINPUTS is the number of I/O input buffers used in the design.
FCLK is the global clock signal frequency.
I/O Output Buffer Contribution—POUTPUTS
POUTPUTS = NOUTPUTS * 2 / 2 * 1 * PAC10 * FCLK
NOUTPUTS is the number of I/O output buffers used in the design.
FCLK is the global clock signal frequency.