Z86C21 datasheet(29/35 Pages) ZILOG

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Z86C21 MCU

WITH

8K ROM

MODE

dst/src

OPC

dst

OPC

MODE

OPC

src

dst

OPC

VALUE

OPC

MODE

src/dst

dst/src

OPC

src/dst

dst/src

OPC

VALUE

dst

OPC

dst/CC

7FH

FFH

6FH

OPC

dst

dst/src

1 1 1 0

dst

1 1 1 0

src

1 1 1 0

MODE

src

OPC

dst

MODE

dst

OPC

VALUE

OPC

src

MODE

dst

OPC

MODE

ADDRESS

dst/src

OPC

DAU

DAL

DAU

DAL

OPC

src

1 1 1 0

dst

1 1 1 0

dst

1 1 1 0

src

1 1 1 0

dst

1 1 1 0

CLR, CPL, DA, DEC,

DECW, INC, INCW,

POP, PUSH, RL, RLC,

RR, RRC, SRA, SWAP

JP, CALL (Indirect)

SRP

ADC, ADD, AND, CP,

OR, SBC, SUB, TCM,

TM, XOR

LD, LDE, LDEI,

LDC, LDCI

DJNZ, JR

STOP/HALT

CALL

ADC, ADD, AND, CP,

LD, OR, SBC, SUB,

TCM, TM, XOR

ADC, ADD, AND, CP,

LD, OR, SBC, SUB,

TCM, TM, XOR

One-Byte Instructions

Two-Byte Instructions

Three-Byte Instructions

CCF, DI, EI, IRET, NOP,

RCF, RET, SCF

INSTRUCTION FORMATS

INSTRUCTION SUMMARY

Note: Assignment of a value is indicated by the symbol

“

← ”. For example:

dst

← dst + src

indicates that the source data is added to the destination

data and the result is stored in the destination location. The

notation “addr (n)” is used to refer to bit (n) of a given

operand location. For example:

dst (7)

refers to bit 7 of the destination operand.

Z86C21 Datasheet(PDF) 29 Page - Zilog, Inc.

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