Profile

Code name : maruCc36
Architect : Takamori Matsumoto(Cofabricator : Kouichi Oota)
Became operational : Monday, August, 3, 1998
Type : pipelined RISC having 3 stages
Instructions : two-operand format 16bit-instructions x 23


Special features

Fully interlocked pipeline
Two's complement arithmetic addition/subtraction
Internal interruption handling (overflow)


Machine organization

Registers : 8bit General purpose registers x 5
Logic units : 8 bit ALU x 1
Internal bus : 8 bit x 3
External bus : 16 bit instruction bus x 1, 8 bit data bus x 1
Main Store : 256Byte x 2 (instruction) + 256Byte (data)
Maximum CPU frequency : 35.714MHz(estimated)
FPGA : Xilinx4010PG191
TTL : TI 74 series IC x 30
I/O : 21 switches, 10 LEDs
Application program : Euclidean algorithm


Days taken

System design : 2 weeks (net: 8 days)
CAD : 5 weeks (net: 20 days)
Fabrication : 4 weeks (net: 15 days)
Debug : 4 weeks (net 18 days)


Comments

It was hard to complete but I felt safe to find it worked.




Computer Engineering Experiment City-1 in 1998 on Verilog HDL and FPGA




Microcomputer Design Educational Environment City-1