參數資料
型號: 4571
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數: 111/126頁
文件大?。?/td> 1627K
代理商: 4571
Rev.1.02
May 25, 2007
Page 85 of 124
REJ03B0179-0102
4571 Group
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) (continued)
SNZT2
(Skip if Non Zero condition of Timer 2 interrupt request flag)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
1
000
00
01 2 28 1 16
11
-
V13 = 0 : (T2F) = 1
Opera-
tion:
V13 = 0 : (T2F) = 1 ?
(T2F)
0
V13 = 1 : SNZT2 = NOP
(V13 = bit 3 of interrupt control register V1)
Grouping:
Timer operation
Description: When V13 = 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 V13 = 1 : This instruction is equivalent to the NOP
instruction.
SNZT3
(Skip if Non Zero condition of Timer 3 interrupt request flag)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
1
000
00
10 2 28 2 16
11
-
V20 = 0 : (T3F) = 1
Opera-
tion:
V20 = 0 : (T3F) = 1 ?
(T3F)
0
V20 = 1 : SNZT3 = NOP
Grouping:
Timer operation
Description: When V20 = 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 V20 = 1 : This instruction is equivalent to the NOP
instruction.
SNZVD
(Skip if Non Zero condition of Voltage Detector interrupt request flag)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
1
0
1
000
10
10 2 28 A 16
11
-
V23 = 0 : (VDF) = 1
Opera-
tion:
V23 = 0 : (VDF) = 1?
V23 = 1 : SNZVD = NOP
Grouping:
Other operation
Description: When V23 = 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 V23 = 1 : This instruction is equivalent to the NOP
instruction.
SRST
(System ReSet)
Instruc-
tion
code
D9
D0
Number of
words
Number of
cycles
Flag CY
Skip condition
0
000
00
01 2 00 1 16
11
-
Opera-
tion:
System reset
Grouping:
Other operation
Description: System reset occurs.
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