參數(shù)資料
型號： UPD68AMC-XXX-5A4
元件分類： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, 4.5 MHz, MICROCONTROLLER, PDSO20
封裝： 0.300 INCH, PLASTIC, SSOP-20
文件頁數(shù)： 51/73頁
文件大?。?/td> 561K
代理商： UPD68AMC-XXX-5A4
53
PD67, 67A, 68, 68A, 69
Data Sheet U14935EJ2V1DS
STTS R0n
<1> Instruction code:
0 00110 R3 R2 R1 R0
<2> Cycle count:
1
<3> Function:
if statuses match
F
← 1
else
F
← 0n = 0 to F
Compares the S0, S1, KI/O, KI, and TIMER statuses with the register R0n contents. If at least one of the
statuses matches the bits that have been set, the status flag F is set (to 1).
If none of them match, the status flag F is cleared (to 0).
STTS #data4
<1> Instruction code:
0 00111000 1
:
0 00000 d3 d2 d1 d0
<2> Cycle count:
1
<3> Function:
if statuses match
F
← 1
else
F
← 0
Compares the S0, S1, S2, KI/O, KI, and TIMER statuses with the immediate data contents. If at least one
of the statuses matches the bits that have been set, the status flag F is set (to 1).
If none of them match, the status flag F is cleared (to 0).
SCAF (Set Carry If ACC = FH)
<1> Instruction code:
1 10101001 1
<2> Cycle count:
1
<3> Function:
if
A = 0FH
CY
← 1
else
CY
← 0
Sets the carry flag CY (to 1) if the accumulator contents are FH.
The accumulator values after executing the SCAF instruction are as follows:
Accumulator Value
Carry Flag
Before Execution
After Execution
×××0
0000
0 (clear)
××01
0001
0 (clear)
×011
0011
0 (clear)
0111
0 (clear)
1111
1 (set)
Remark
×: don’t care
NOP
<1> Instruction code:
0 00000000 0
<2> Cycle count:
1
<3> Function:
PC
← PC + 1
No operation
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