參數(shù)資料
型號： UPD754202
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)： 43/66頁
文件大?。?/td> 302K
代理商： UPD754202
43
μ
PD754202, 754202(A)
Instruction
group
Number
of bytes
Number
of machine
cycles
Addressing
area
Mnemonic
Operand
Operation
Skip condition
Interrupt
control
instructions
EI
2
2
IME (IPS.3)
←
1
IE
×××
2
2
IE
×××
←
1
DI
2
2
IME (IPS.3)
←
0
IE
×××
2
2
IE
×××
←
0
Input/output
instructions
IN
Note 1
A, PORTn
2
2
A
←
PORTn
(n = 3, 6, 7, 8)
OUT
Note 1
PORTn, A
2
2
PORTn
←
A
(n = 3, 6, 8)
CPU control
instructions
HALT
2
2
Set HALT Mode (PCC.2
←
1)
STOP
2
2
Set STOP Mode (PCC.3
←
1)
NOP
1
1
No Operation
Special
instructions
SEL
RBn
2
2
RBS
←
n
(n = 0-3)
MBn
2
2
MBS
←
n
(n = 0, 15)
GETI
Notes 2, 3
taddr
1
3
When TBR instruction
PC
10–0
←
(taddr)
2–0
+ (taddr+1)
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
*10
When TCALL instruction
(SP–4) (SP–1) (SP–2)
←
0, PC
10–0
(SP–3)
←
MBE, RBE, 0, 0
PC
10–0
←
(taddr)
2–0
+ (taddr+1)
SP
←
SP–4
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
When instruction other than TBR and
TCALL instructions
(taddr) (taddr+1) instruction is executed.
Depending on
the reference
instruction
3
When TBR instruction
PC
10–0
←
(taddr)
2–0
+ (taddr+1)
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
*10
4
When TCALL instruction
(SP–6) (SP–3) (SP–4)
←
PC
10–0
(SP–5)
←
0, 0, 0, 0
(SP–2)
←
×
,
×
, MBE, RBE
PC
10–0
←
(taddr)
2–0
+ (taddr+1)
SP
←
SP–6
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
3
When instruction other than TBR and
TCALL instructions
(taddr) (taddr+1) instruction is executed.
Depending on
the reference
instruction
Notes 1.
While the IN instruction and OUT instruction are being executed, MBS must be set to 0, or MBE must
be set to 1 and MBS must be set to 15.
The TBR and TCALL instructions are the table definition assembler pseudo instructions of the GETI
instruction.
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.
2.
3.
– – – – – – – – – – – – –
– – – – – – – – – – – – –
– – – – – – – – – – – – –
– – – – – – – – – – – – –
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