HD404314H Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

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HD404314H

4-bit HMCS400-series microcomputer

Hitachi -> Renesas Electronics 

HD404318 Series

Table 2 Instruction Set Classification

Instruction Type

Function

Number of

Instructions

Immediate

Transferring constants to the accumulator, B register, and RAM.

4

Register-to-register Transferring contents of the B, Y, SPX, SPY, or memory registers to 8

the accumulator

RAM addressing

Available when accessing RAM in register indirect addressing mode 13

RAM register

Transferring data between the accumulator and memory.

10

Arithmetic

Performing arithmetic operations with the contents of the accumulator, 25

B register, or memory.

Compare

Comparing contents of the accumulator or memory with a constant 12

RAM bit manipulation Bit set, bit reset, and bit test.

6

ROM addressing

Branching and jump instructions based on the status condition.

8

Input/output

Controlling the input/output of the R and D ports; ROM data reference 11

with the P instruction

Control

Controlling the serial communication interface and low-power

4

dissipation modes.

Total: 101

instructions

15

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