3-6 Computer Group Literature Center Web Site
System Memory Controller (SMC)
3
Figure 3-4. Hawk’s System Memory Controller Block Diagram
SDRAM
SDRAM
DATA
JTAG
PPC60x Data
MEM Data
MEM Addr
PPC60x Addr
PPC60x Attr
PPC60x Ctrl
MEM Ctrl
&
ROM/Flash
CONTROL
SDRAM
ADDRESS
MULTIPLEXOR
PPC60x
STATUS
/CONTROL
REGISTERS
MULTIPLEXOR
ADDRESS
DECODER
PPC60x
SLAVE
INTERFACE
ERROR
LOGGER
I2C
INTERFACE
I2C Bus
ARBITER
REFRESHER
/SCRUBBER
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