MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
LIST OF INSTRUCTION FUNCTION (CONTINUED)
Grouping
Grouping
Mnemonic
NOP
Function
Mnemonic
TV1A
Function
(PC) ← (PC) + 1
(V12–V10) ← (A2–A0)
TAB1
T1AB
(B) ← (T17–T14)
(A) ← (T13–T10)
POF
RAM back-up
SNZP
CCK
(P) = 1 ?
at timer 1 stop (V10=0):
(R17–R14) ← (B)
(T17–T14) ← (B)
(R13–R10) ← (A)
(T13–T10) ← (A)
at timer 1 operating:
(V10=1)
STCK changes to f(XIN)
(LO1, LO0) ← (A1, A0)
(URS) ← 1
TLOA
URSC
TPU0A
WRST
(R17–R14) ← (B)
(R13–R10) ← (A)
(PU02–PU00) ← (A2–A0)
(WDF1) ← 0
SNZ1
TCA
(T1F) = 1 ?
After skipping the next
instruction
(T1F) ← 0
(C2–C0) ← (A2–A0)
(CARR) ← 0
TAC
OCRA
CLD
RD
(A2–A0) ← (C2–C0)
(CARR) ← (A3)
(D) ← 1
(D(Y)) ← 0
(Y) = 0 to 7
SD
(D(Y)) ← 1
(Y) = 0 to 7
SZD
(D(Y)) = 0 ?
(Y) = 7
OEA
IAE
(E1, E0) ← (A1, A0)
(A2–A0) ← (E2–E0)
(G) ← (A)
OGA
IAG
(A) ← (G)
MITSUBISHI
ELECTRIC
24
MITSUBISHI [ Mitsubishi Group ]
