
Rev.1.02
REJ03B0179-0102
May 25, 2007
Page 85 of 124
4571 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
SNZT2
(Skip if Non Zero condition of Timer 2 interrupt request flag)
Instruc-
tion
code
1
0
1
0
0
0
0
0
D
9
D
0
1 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
2
8
1 16
1
1
-
V1
3
= 0 : (T2F) = 1
Opera-
tion:
V1
3
= 0 : (T2F) = 1
(T2F)
←
0
V1
3
= 1 : SNZT2 = NOP
(V1
3
= bit 3 of interrupt control register V1)
Grouping:
Description: When V1
3
= 0 : Clears (0) to the T2F flag and skips the
next instruction when timer 2 interrupt request flag T2F is
“1”. When the T2F flag is “0”, executes the next instruction.
When V1
3
= 1 : This instruction is equivalent to the NOP
instruction.
Timer operation
SNZT3
(Skip if Non Zero condition of Timer 3 interrupt request flag)
Instruc-
tion
code
1
0
1
0
0
0
0
0
D
9
D
0
0 2
Number of
words
Number of
cycles
Flag CY
Skip condition
1
2
8
2 16
1
1
-
V2
0
= 0 : (T3F) = 1
Opera-
tion:
V2
0
= 0 : (T3F) = 1
(T3F)
←
0
V2
0
= 1 : SNZT3 = NOP
Grouping:
Description: When V2
0
= 0 : Clears (0) to the T3F flag and skips the
next instruction when timer 3 interrupt request flag T3F is
“1”. When the T3F flag is “0”, executes the next instruction.
When V2
0
= 1 : This instruction is equivalent to the NOP
instruction.
Timer operation
SNZVD
(Skip if Non Zero condition of Voltage Detector interrupt request flag)
Instruc-
tion
code
1
0
1
0
0
0
1
0
1
0 2
D
9
D
0
Number of
words
Number of
cycles
Flag CY
Skip condition
2
8
A 16
1
1
-
V2
3
= 0 : (VDF) = 1
Opera-
tion:
V2
3
= 0 : (VDF) = 1
V2
3
= 1 : SNZVD = NOP
Grouping:
Description: When V2
3
= 0 : Skips the next instruction when voltage
detector interrupt request flag VDF is “1”. After skipping,
clears (0) to the VDF flag. The VDF flag is not cleared to
“0”.
When V2
3
= 1 : This instruction is equivalent to the NOP
instruction.
Other operation
SRST
(System ReSet)
Instruc-
tion
code
0
D
9
D
0
1 2
Number of
words
Number of
cycles
Flag CY
Skip condition
0
0
0
0
0
0
0
0
0
0
1 16
1
1
-
-
Opera-
tion:
System reset
Grouping:
Description: System reset occurs.
Other operation