參數(shù)資料
型號(hào): UPD754264GS
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): 39/68頁
文件大?。?/td> 318K
代理商: UPD754264GS
39
μ
PD754264
Instruction
group
Number
of bytes
Number
of machine
cycles
Addressing
area
Mnemonic
Operand
Operation
Skip condition
Transfer
instruction
MOV
A, #n4
1
1
A
n4
String effect A
reg1, #n4
2
2
reg1
n4
XA, #n8
2
2
XA
n8
String effect A
HL, #n8
2
2
HL
n8
String effect B
rp2, #n8
2
2
rp2
n8
A, @HL
1
1
A
(HL)
*1
A, @HL+
1
2+S
A
(HL), then L
L+1
*1
L = 0
A, @HL–
1
2+S
A
(HL), then L
L–1
*1
L = FH
A, @rpa1
1
1
A
(rpa1)
*2
XA, @HL
2
2
XA
(HL)
*1
@HL, A
1
1
(HL)
A
*1
@HL, XA
2
2
(HL)
XA
*1
A, mem
2
2
A
(mem)
*3
XA, mem
2
2
XA
(mem)
*3
mem, A
2
2
(mem)
A
*3
mem, XA
2
2
(mem)
XA
*3
A, reg
2
2
A
reg
XA, rp'
2
2
XA
rp'
reg1, A
2
2
reg1
A
rp'1, XA
2
2
rp'1
XA
XCH
A, @HL
1
1
A
(HL)
*1
A, @HL+
1
2+S
A
(HL), then L
L+1
*1
L = 0
A, @HL–
1
2+S
A
(HL), then L
L–1
*1
L = FH
A, @rpa1
1
1
A
(rpa1)
*2
XA, @HL
2
2
XA
(HL)
*1
A, mem
2
2
A
(mem)
*3
XA, mem
2
2
XA
(mem)
*3
A, reg1
1
1
A
reg1
XA, rp'
2
2
XA
rp'
Table
reference
instructions
MOVT
XA, @PCDE
1
3
XA
(PC
11–8
+DE)
ROM
XA, @PCXA
1
3
XA
(PC
11–8
+XA)
ROM
XA, @BCDE
1
3
XA
(BCDE)
ROM
Note
*6
XA, @BCXA
1
3
XA
(BCXA)
ROM
Note
*6
Note
Set “0” in register B.
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