Memory Clock Mask Register (MCMR)
Address: 87.5000.0040
This register controls the DRAM_CLK pins and SRAM_CLK pins. These bits are initialized to "1" at reset. Note that DRAM_CLK[12] generally should not be turned off since this bit is connected to DRAM_CLK_IN and controls the operation of the clock delay circuit.

. When a bit is programmed to a 0 (zero), the corresponding output is driven low. Any clock that is not used should be turned off, the corresponding bit set to 0 (zero). The will limit power dissipation and lower the EMI.
MCMR<15><15>RW SRAM_CLK[2]
MCMR<14><14>RW SRAM_CLK[1]
MCMR<13><13>RW SRAM_CLK[0]
MCMR<12><12>RW DRAM_CLK[12]
MCMR<11><11>RW DRAM_CLK[11]
MCMR<10><10>RW DRAM_CLK[10]
MCMR<9><9>RW DRAM_CLK[9]
MCMR<8><8>RW DRAM_CLK[8]
MCMR<7><7>RW DRAM_CLK[7]
MCMR<6><6>RW DRAM_CLK[6]
MCMR<5><5>RW DRAM_CLK[5]
MCMR<4><4>RW DRAM_CLK[4]
MCMR<3><3>RW DRAM_CLK[3]
MCMR<2><2>RW DRAM_CLK[2]
MCMR<1><1>RW DRAM_CLK[1]
MCMR<0><0>RW DRAM_CLK[0]