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參數(shù)資料
| 型號： | UPD75048CW |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 4位單片機 |
| 文件頁數(shù)： | 39/68頁 |
| 文件大小： | 538K |
| 代理商： | UPD75048CW |
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39
μ
PD75048
10. INSTRUCTION SET
(1) Operand representation and description
Describe one or more operands in the operand field of each instruction according to the operand
representation and description methods of the instruction (for details, refer to RA75X Assembler
Package User's Manual - Language (EEU-730). With some instructions, only one operand should
be selected from several operands. The uppercase characters, +, and - are keywords and must be
described as is.
Describe an appropriate numeric value or label as immediate data.
The symbols of the register flags can be described in the places of mem, fmem, pmem, and bit.
(For details, refer to
μ
PD75048 User's Manual (IEU-704). However, fmem and pmem restricts
the label that can be described.
Representation
reg
reg1
rp
rp1
rp2
rpa
rpa1
Description
X, A, B, C, D, E, H, L
X, B, C, D, E, H, L
XA, BC, DE, HL
BC, DE, HL
BC, DE
HL, DE, DL
DE, DL
n4
n8
mem*
bit
fmem
pmem
addr
caddr
faddr
taddr
4-bit immediate data or label
8-bit immediate data or label
8-bit immediate data or label
2-bit immediate data or label
FB0H to FBFH, FF0H to FFFH immediate data or label
FC0H to FFFH immediate data or label
0000H to 1F7FH immediate data or label
12-bit immediate data or label
11-bit immediate data or label
20H to 7FH immediate data (where bit0=0) or label
PORTn
IExxx
PORT0 to PORT11
IEBT, IECSI, IET0, IE0, IE1, IE2, IE4, IEW, IEMFT,
IEEE, IEOW
MB0, MB1, MB4, MB5, MB6, MB7, MB15
MBn
*: Only even addresses can be described as mem for 8-bit data processing.
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