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159
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
2.3.5.2 EMC Reset and Clock
In
main ximum memory configuration at the EMC interface is shown (2x SDRAM devices,
2x Burst Flash devices, 1x Peripheral / Level Shifter for 3,3V). Each memory device gets
its own clock. The ERTEC 200P has 3 Clocks for the SDRAM memory
(CLK_O_SDRAM2/1/0) and 3 Clocks for the Burst Flash memory (CLK_O_BF2/1/0)
.
The CLK_O_SDRAM0 / CLK_O_BF0 must be used for feedback the external
memory clock to the ERTEC 200P inputs CLK_I_SDRAM / CLK_I_BF.
Figure 10: EMC interface with two SDRAM / two Burst Flash configuration
CLK_O_SDRAM1 / CLK_O_BF1 are used for the respective memory device no.1 and
CLK_O_SDRAM2 / CLK_O_BF2 for the respective memory device no.2.