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參數(shù)資料
| 型號： | UPD70741 |
| 廠商： | NEC Corp. |
| 元件分類： | 16位微控制器 |
| 英文描述： | V821TM 32-/16-BIT MICROPROCESSOR |
| 中文描述： | V821TM 32-/16-BIT微處理器 |
| 文件頁數(shù)： | 50/112頁 |
| 文件大?。?/td> | 605K |
| 代理商： | UPD70741 |
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μ
PD70741
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15. INSTRUCTION SET
15.1 Instruction Format
The V821 instructions are formatted in either 16 bits or 32 bits. Examples of the 16-bit format instruction are
binomial operation, control, and conditional branch; those for the 32-bit format are load/store, I/O manipulate, 16-
bit immediate, jump & link, and extended operations.
Some instructions have an unused field. However, do not write a program that uses this field because it is reserved
for future use. This unused field must be set to zeros.
Instructions are stored in memory in the following manner.
The lower half of an instruction, that is, the half which includes bit 0, is stored at the lower address.
The higher half of an instruction, that is, the half which includes bit 15 or 31, is stored at the higher address.
(1) reg-reg instruction format (Format I)
This format consists of one 6-bit field to hold an operation code and two 5-bit fields to specify general-purpose
registers as instruction’s operands. 16-bit instructions use this format.
(2) imm-reg instruction format (Format II)
This format consists of one 6-bit field to hold an operation code, one 5-bit field to hold an immediate data, and
one field to specify a general-purpose register as an operand. 16-bit instructions use this format.
(3) Conditional branch instruction format (Format III)
This format consists of one 3-bit field to hold an operation code, one 4-bit field to hold a condition code, and one
9-bit field to hold a branch displacement (with its LSB masked to 0). 16-bit instructions use this format.
15
10
opcode
reg2
imm
9
5 4
0
15
10
opcode
reg2
reg1
9
5 4
0
15
13
opcode
cond
disp
12
9 8
0
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD70741GC-25-8EU | V821TM 32-/16-BIT MICROPROCESSOR |
| UPD70F3003A | V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD70F3003AGC-25-8EU | Circular Connector; No. of Contacts:24; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-24 RoHS Compliant: No |
| UPD70F3025AGC-25-8EU | V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD70F3003AGC-33-8EU | LJT 29C 29#16 PIN PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD70741GC-25-8EU | 制造商:NEC 制造商全稱:NEC 功能描述:V821TM 32-/16-BIT MICROPROCESSOR |
| UPD70742GD-25-LML | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
| UPD70F30025AGC-25 | 制造商:NEC 制造商全稱:NEC 功能描述:32-bit RISC Microcontrollers |
| UPD70F30025AGC-33 | 制造商:NEC 制造商全稱:NEC 功能描述:32-bit RISC Microcontrollers |
| UPD70F3003A | 制造商:NEC 制造商全稱:NEC 功能描述:V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER |
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