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455A Datasheet, PDF (136/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
455A Group
MACHINE INSTRUCTIONS (INDEX BY TYPES) (continued)
Para
Instruction code
meter
Type of
instructi
ons
Mnemonic
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Hexadecim
al notation
NOP
0000000000000 1
POF
0000000010002 1
Function
1 (PC) ← (PC) + 1
1 Transition to clock operating mode
POF2
0 0 0 0 0 0 1 0 0 0 0 0 8 1 1 Transition to RAM back-up mode
EPOF
SNZP
000101101105B 1
0000000011003 1
1 POF or POF2 instruction valid
1 (P) = 1 ?
WRST
DWDT
SRST
RUPT
SUPT
1 0 1 0 1 0 0 0 0 0 2 A 0 1 1 (WDF1) = 1 ?
(WDF1) ← 0
101001110029C 1
0000000001001 1
0001011000058 1
0001011001059 1
1 Stop of watchdog timer function enabled
1 System reset
1 (UPTF) ← 0
1 (UPTF) ← 1
SVDE
1 0 1 0 0 1 0 0 1 1 2 9 3 1 1 At power down mode, voltage drop detection
circuit valid
SNZVD 1 0 1 0 0 0 1 0 1 0 2 8 A 1 1 (VDF) = 1?
RBK
(Note 1)
0001000000040 1
1 When TABPp instruction is executed, p6 0
SBK
(Note 1)
0001000001041 1
1 When TABPp instruction is executed, p6 1
Note 1. (SBK, RBK) cannot be used int the M3455AG8. The pages which can be referred by the TABP instruction after the SBK
instruction is executed are 64 to 95 in the M3455AGC.
Rev.1.01 Feb 15, 2008 Page 136 of 146
REJ03B0224-0101