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參數(shù)資料
| 型號(hào)： | UPD754264 |
| 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(yè)數(shù)： | 44/68頁(yè) |
| 文件大?。?/td> | 318K |
| 代理商： | UPD754264 |
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44
μ
PD754264
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
When TCALL instruction
(SP–4) (SP–1) (SP–2)
←
PC
11–0
(SP–3)
←
MBE, RBE, 0, 0
PC
11–0
←
(taddr)
3–0
+ (taddr+1)
SP
←
SP–4
– – – – – – – – – – – – –
– – – – – – – – – – – – –
Depending on
the reference
instruction
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
When instruction other than TBR and
TCALL instructions
(taddr) (taddr+1) instruction is executed.
– – – – – – – – – – – – –
– – – – – – – – – – – – –
Depending on
the reference
instruction
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, 4, 15)
GETI
Notes 2, 3
taddr
1
3
When TBR instruction
PC
11–0
←
(taddr)
3–0
+ (taddr+1)
*10
3
When TBR instruction
PC
11–0
←
(taddr)
3–0
+ (taddr+1)
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
*10
4
When TCALL instruction
(SP–6) (SP–3) (SP–4)
←
PC
11–0
(SP–5)
←
0, 0, 0, 0
(SP–2)
←
×
,
×
, MBE, RBE
PC
11–0
←
(taddr)
3–0
+ (taddr+1)
SP
←
SP–6
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
3
When instruction other than TBR and
TCALL instructions
(taddr) (taddr+1) instruction is executed.
Notes 1.
While the IN instruction and OUT instruction are being executed, MBE must be set to 0, or MBE must be
set to 1 and MBS must be set to 15.
2.
The TBR and TCALL instructions are the table definition assembler pseudo instructions of the GETI
instruction.
3.
The above operations in the double boxes can be performed only in the Mk II mode. The other operations
can be performed only in the Mk I mode.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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