UPD77111 NEC, UPD77111 Datasheet - Page 33

• Manufacturer Part Number: UPD77111
• Description: 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS
• Manufacturer: NEC

9. INSTRUCTIONS
9.1 Outline of Instructions
executed with one system clock. The maximum instruction cycle of the
instruction cycle of the PD77111 and 77112 is 13.3 ns. The following nine types of instructions are available:
(1) Trinomial operation instructions
(2) Binomial operation instructions
(3) Uninominal operation instructions
(4) Load/store instructions
(5) Register-to-register transfer instructions
(6) Immediate value setting instructions
(7) Branch instructions
(8) Hardware loop instructions
(9) Control instructions
An instruction consists of 32 bits. Almost all the instructions, except some such as branch instructions, are
These instructions specify an operation by the MAC. As the operands, three general-purpose registers can be
specified.
These instructions specify an operation by the MAC, ALU, or BSFT. As the operands, two general-purpose
registers can be specified. An immediate value can be specified for some of these instructions, instead of a
general-purpose register, for one input.
These instructions specify an operation by the ALU. As the operands, one general-purpose register can be
specified.
These instructions transfer 16-bit values between memory and a general-purpose register. Any general-purpose
register can be specified as the transfer source or destination.
These instructions transfer data from one general-purpose register to another.
These instructions write an immediate value to a general-purpose register and the registers of the address
operation unit.
These instruction specify branching of program execution.
These instruction specify repetitive execution of an instruction.
These instructions are used to control the program.
Data Sheet U12801EJ4V0DS00
PD77110, 77111, 77112
PD77110 is 15.3 ns. The maximum
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