A2F500M3G-CSG288 Datasheet, PDF (28/197 Pages) Microsemi Corporation – SmartFusion Customizable System-on-Chip (cSoC)

SmartFusion DC and Switching Characteristics
Standby Mode and Time Keeping Mode
P_NET = 0 W
I/O Input Buffer Dynamic Contribution—P_INPUTS
SoC Mode
P_INPUTS = N_INPUTS * (α₂ / 2) * P_AC9 * F_CLK
Where:
N_INPUTS is the number of I/O input buffers used in the design.
α₂ is the I/O buffer toggle rate—guidelines are provided in Table 2-17 on page 2-18.
F_CLK is the global clock signal frequency.
Standby Mode and Time Keeping Mode
P_INPUTS = 0 W
I/O Output Buffer Dynamic Contribution—P_OUTPUTS
SoC Mode
P_OUTPUTS = N_OUTPUTS * (α₂ / 2) * β₁ * P_AC10 * F_CLK
Where:
N_OUTPUTS is the number of I/O output buffers used in the design.
α₂ is the I/O buffer toggle rate—guidelines are provided in Table 2-17 on page 2-18.
β₁ is the I/O buffer enable rate—guidelines are provided in Table 2-18 on page 2-18.
F_CLK is the global clock signal frequency.
Standby Mode and Time Keeping Mode
P_OUTPUTS = 0 W
FPGA Fabric SRAM Dynamic Contribution—P_MEMORY
SoC Mode
β β P_MEMORY = (N_BLOCKS * P_AC11 * ₂ * F_READ-CLOCK) + (N_BLOCKS * P_AC12 * ₃ * F_WRITE-CLOCK)
Where:
N_BLOCKS is the number of RAM blocks used in the design.
F_READ-CLOCK is the memory read clock frequency.
β₂ is the RAM enable rate for read operations—guidelines are provided in Table 2-18 on
page 2-18.
β₃ the RAM enable rate for write operations—guidelines are provided in Table 2-18 on page 2-18.
F_WRITE-CLOCK is the memory write clock frequency.
Standby Mode and Time Keeping Mode
P_MEMORY = 0 W
PLL/CCC Dynamic Contribution—P_PLL
SoC Mode
P_PLL = P_AC13 * F_CLKOUT
F_CLKIN is the input clock frequency.
F_CLKOUT is the output clock frequency.¹
Standby Mode and Time Keeping Mode
1.The PLL dynamic contribution depends on the input clock frequency, the number of output clock signals generated by the
PLL, and the frequency of each output clock. If a PLL is used to generate more than one output clock, include each output
clock in the formula output clock by adding its corresponding contribution (P_AC14 * F_CLKOUT product) to the total PLL
contribution.
2-16
Revision 12