
1.3. OPEN RISC
13
Wishbone
OR1200 CPU
Mem Ctrl
4kBRAM
4kBROM
UART
Parport
Master Slave
Ether Ctrl
2
3
7
2
1
0
0
1
Debug
3
JTAG
PS2
4
VGA
5
SRAM
SRAM
1 MB
SDRAM
64 MB
FLASH
16 MB
PHY
FPGA
Leela
Keyboard
Accelerator
LED, DIPswitch
Hub
Figure 1.5: An Open RISC computer.
1.3.3 OR1200 CPU
A block diagram of the OR1200 CPU is shown in Figure 1.6. More information about
the CPU can be found in [6, 7].
Figure 1.6: Block diagram of the OR1200 CPU.
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