Block Diagrams

http://www.motorola.com/computer/literature 3-5

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