CHAPTER 1 INTRODUCTION
32
User's Manual U14492EJ3V0UD
1.2
Features
Number of instructions
83
Minimum instruction execution time
20 ns (@ internal 50 MHz operation)
General-purpose registers
32 bits
×
32 registers
Instruction set
V850E1 CPU
Signed multiplication (32 bits
×
32 bits
→
64 bits): 1 or 2 clocks
Saturated operation instructions (with overflow/underflow detection function)
32-bit shift instruction: 1 clock
Bit manipulation instructions
Long/short format load/store instructions
Signed load instructions
Memory space
256 MB linear address space (shared by program and data)
Chip select output function: 8 spaces
Memory block division function: 2, 4, or 8 MB/block
Programmable wait function
Idle state insertion function
External bus interface
16-bit data bus (address/data multiplex)
16-/8-bit bus sizing function
Bus hold function
External wait function
On-chip memory
Product Name
Internal ROM
Internal RAM
µ
PD703116
256 KB (mask ROM)
10 KB
µ
PD70F3116
256 KB (flash memory)
10 KB
Interrupts/exceptions
External interrupts: 20 (including NMI)
Internal interrupts: 45 sources
Exceptions:
1 cause
8 levels of priority definable
Memory access control
SRAM controller
Содержание V850E/IA1 mPD703116
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