Sundance SMT395E - Manual (Page 11)

Version 2.1 Page 11 of 30 SMT395Q User Manual
EMIF Control Registers
The C6416 has two external memory interfaces (EMIFs). EMIF_A is 64 bits wide, the
EMIF_B is 16 bits wide.
The C60 contains several registers that control the external memory interfaces (EMIFs).
A full description of these registers can be found in the
C6000 Peripherals Reference
Guide .
The standard bootstrap will initialise these registers to use the following resources:
Memory space
(EMIF_A)
Resource Address range
Internal program memory (1M) 0x00000000 - 0x000FFFFF
CE0 SDRAM (64MB) 0x80000000 - 0x83FFFFFF
CE1 SDRAM (64MB) DSP_A only 0x90000000 - 0x93FFFFFF
CE2 Virtex-II 0xB0000000 - 0xBFFFFFFF
Memory space
(EMIF_B)
Resource Address range
CE0 HPI of adjacent DSP 0x60000000 - 0x600000FF
CE1 2MB section of flash (DSP_A
only) 0x64000000 – 0x640FFFFF
CE2 FPGA PROG controls (DSP_A
only). Write to this address to
assert PROG and clear the
FPGA configuration. 0x68000000
CE3 FPGA CCLK control (DSP_A
only) 0x6C000000
The boot code sets-up the EMIF as follows:
GCTLB = 0x0001277C;
CECTL0A = 0x000000D0;
CECTL1A = 0x000000D0;
CECTL2A = 0xFFFFFF23
CECTL3A = 0x00000030;
SDCTRLA = 0x53227000;
CECTL0B = 0x10d20415;
CECTL1B = 0xFFF50D13;
CECTL2B = 0xFFFFFF23;
CECTL3B = 0x105FFF23;
SDEXTA = 0x53227000;