4559 Datasheet, PDF (136/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4559 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
0 0 0 1 0 1 1 0 1 1 0 5 B 1 1 POF or POF2 instruction valid
0 0 0 0 0 0 0 0 1 1 0 0 3 1 1 (P) = 1 ?
WRST
1 0 1 0 1 0 0 0 0 0 2 A 0 1 1 (WDF1) = 1 ?
(WDF1) ← 0
DWDT
SRST
RUPT
SUPT
SVDE
101001110029C 1
0000000001001 1
0001011000058 1
0001011001059 1
1010010011293 1
1 Stop of watchdog timer function enabled
1 System reset
1 (UPTF) ← 0
1 (UPTF) ← 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?
Rev.1.04 Aug 23, 2007 Page 136 of 146
REJ03B0188-0104