HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 20

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

Table 1.1
Item
CPU
2
Features
Specifications
Original Hitachi architecture
32-bit internal architecture
General register machine
RISC (Reduced Instruction Set Computer) type instruction set
Instruction execution time: One instruction per cycle (16.7 ns/instruction at
60 MHz operation)
Address space: Architecture supports 4 Gbytes
On-chip multiplier: Multiply operations (32 bits
multiply-and-accumulate operations (32 bits
executed in two to four cycles
Five-stage pipeline
Sixteen 32-bit general registers
Six 32-bit control registers (including 3 added for DSP use)
Four 32-bit system registers
Fixed 16-bit instruction length for improved code efficiency
Load-store architecture (basic operations are executed between
Delayed branch instructions reduce pipeline disruption during
C-oriented instruction set
registers)
branches
32 bits + 64 bits
32 bits
64 bits) and
64 bits)