參數(shù)資料
型號: UPD754202A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁數(shù): 41/66頁
文件大?。?/td> 302K
代理商: UPD754202A
41
μ
PD754202, 754202(A)
Instruction
group
Number
of bytes
Number
of machine
cycles
Addressing
area
Mnemonic
Operand
Operation
Skip condition
Memory bit
manipulation
instructions
SKTCLR
fmem.bit
2
2+S
Skip if (fmem.bit) = 1 and clear
*4
(fmem.bit) = 1
pmem.@L
2
2+S
Skip if (pmem
7–2
+L
3–2
.bit(L
1–0
)) = 1 and clear
*5
(pmem.@L) = 1
@H+mem.bit
2
2+S
Skip if (H+mem
3–0
.bit) = 1 and clear
*1
(@H+mem.bit) = 1
AND1
CY, fmem.bit
2
2
CY
CY
(fmem.bit)
*4
CY, pmem.@L
2
2
CY
CY
(pmem
7–2
+L
3–2
.bit(L
1–0
))
*5
CY, @H+mem.bit
2
2
CY
CY
(H+mem
3–0
.bit)
*1
OR1
CY, fmem.bit
2
2
CY
CY
(fmem.bit)
*4
CY, pmem.@L
2
2
CY
CY
(pmem
7–2
+L
3–2
.bit(L
1–0
))
*5
CY, @H+mem.bit
2
2
CY
CY
(H+mem
3–0
.bit)
*1
XOR1
CY, fmem.bit
2
2
CY
CY v (fmem.bit)
*4
CY, pmem.@L
2
2
CY
CY v (pmem
7–2
+L
3–2
.bit(L
1–0
))
*5
CY, @H+mem.bit
2
2
CY
CY v (H+mem
3–0
.bit)
*1
Branch
instructions
BR
Note 1
addr
PC
10–0
addr
Select appropriate instruction among
BR !addr, BRCB !caddr, and BR $addr
according to the assembler being used.
*6
addr1
PC
10-0
addr1
Select appropriate instruction among
BR !addr, BRA !addr1, BRCB !caddr, and
BR $addr1 according to the assembler
being used.
*11
!addr
3
3
PC
10–0
addr
*6
$addr
1
2
PC
10–0
addr
*7
$addr1
1
2
PC
10–0
addr1
PCDE
2
3
PC
10–0
PC
10-8
+DE
PCXA
2
3
PC
10–0
PC
10-8
+XA
BCDE
2
3
PC
10–0
BCDE
Note 2
*6
BCXA
2
3
PC
10–0
BCXA
Note 2
*6
BRA
Note 1
!addr1
3
3
PC
10–0
addr1
*11
BRCB
!caddr
2
2
PC
10–0
caddr
10–0
*8
Notes 1.
The above operations in the shaded boxes can be performed only in the Mk II mode. The other
operations can be performed only in the MK I mode.
“0” must be set to the B register.
2.
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