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): 140/148頁
文件大?。?/td> 1807K
代理商: M3455AGC-XXXFP
Rev.1.02
Nov 26, 2008
Page 91 of 146
REJ03B0224-0102
455A Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
DEY
(DEcrement register Y)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
001
01
11 2 01 7 16
11
-
(Y) = 15
Opera-
tion:
(Y)
(Y) 1
Grouping:
RAM addresses
Description: Subtracts 1 from the contents of register Y.
As a result of subtraction, when the contents of register Y
is 15, the next instruction is skipped. When the contents of
register Y is not 15, the next instruction is executed.
DI
(Disable Interrupt)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
000
01
00 2 00 4 16
11
-
Opera-
tion:
(INTE)
0
Grouping:
Interrupt control operation
Description: Clears (0) to interrupt enable flag INTE, and disables the
interrupt.
Note:
Interrupt is disabled by executing the DI instruction after
executing 1 machine cycle.
DWDT (Disable WatchDog Timer)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
1
001
11
00 2 29 C 16
11
-
Opera-
tion:
Stop of watchdog timer function enabled
Grouping:
Other operation
Description: Stops the watchdog timer function by the WRST instruction
after executing the DWDT instruction.
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