參數(shù)資料
型號: M3455AGC-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP52
封裝: 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件頁數(shù): 149/150頁
文件大小: 1818K
代理商: M3455AGC-XXXFP
Rev.1.02
Nov 26, 2008
Page 96 of 146
REJ03B0224-0102
455A Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
POF
(Power OFf)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
00
000
00
10 2 00 2 16
11
-
Opera-
tion:
Transition to clock operating mode
Grouping:
Other operation
Description: Puts the system in clock operating mode by executing the
POF2 instruction after executing the EPOF instruction.
Note:
If the EPOF instruction is not executed just before this
instruction, this instruction is equivalent to the NOP instruc-
tion.
POF2
(Power OFf2)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
00
000
10
00 2 00 8 16
11
-
Opera-
tion:
Transition to RAM back-up mode
Grouping:
Other operation
Description: Puts the system in RAM back-up state by executing the
POF2 instruction after executing the EPOF instruction.
Note:
If the EPOF instruction is not executed before executing
this instruction, this instruction is equivalent to the NOP
instruction.
RAR
(Rotate Accumulator Right)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
00
001
11
01 2 01 D 16
11
0/1
-
Opera-
tion:
Grouping:
Arithmetic operation
Description: Rotates 1 bit of the contents of register A including the
contents of carry flag CY to the right.
RB j
(Reset Bit)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
00
100
11
j
2
04
C
+j 16
11
-
Opera-
tion:
(Mj(DP))
0
j = 0 to 3
Grouping:
Bit operation
Description: Clears (0) the contents of bit j (bit specified by the value j in
the immediate field) of M(DP).
CY
A3A2A1A0
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