UPD753012GC NEC, UPD753012GC Datasheet - Page 43

• Manufacturer Part Number: UPD753012GC
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

11. INSTRUCTION SETS AND THEIR OPERATIONS
(1) Operand identifiers and methods of use
Operands are written in the operand column of each instruction in accordance with the method of use for
the operand identifier of the instruction. For details, refer to RA75X Assembler Package User’s Manual—
Language (U12385E). If there are several elements, one of them is selected. Capital letters and the +
and – symbols are key words and are written as they are.
For immediate data, appropriate numbers and labels are written.
Instead of the labels such as mem, fmem, pmem, and bit, the symbols of the registers can be written.
However, there are restrictions in the labels that can be written for fmem and pmem. For details, refer to
User’s Manual.
Note mem can be only used even address in 8-bit data processing.
reg
reg1
rp
rp1
rp2
rp'
rp'1
rpa
rpa1
n4
n8
mem
bit
fmem
pmem
addr
addr1
caddr
faddr
taddr
PORTn
IEXXX
RBn
MBn
Identifier
X, A, B, C, D, E, H, L
X, B, C, D, E, H, L
XA, BC, DE, HL
BC, DE, HL
BC, DE
XA, BC, DE, HL, XA’, BC’, DE’, HL’
BC, DE, HL, XA’, BC’, DE’, HL’
HL, HL+, HL–, DE, DL
DE, DL
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-FBFH, FF0H-FFFH immediate data or label
FC0H-FFFH immediate data or label
0000H-2FFFH immediate data or label ( PD753012)
0000H-3FFFH immediate data or label ( PD753016, 753017)
0000H-5FFFH immediate data or label
12-bit immediate data or label
11-bit immediate data or label
20H-7FH immediate data (where bit 0 = 0) or label
PORT0-PORT7
IEBT, IET0-IET2, IE0-IE2, IE4, IECSI, IEW
RB0-RB3
MB0, MB1, MB2, MB3, MB15
Format
Note
PD753012, 753016, 753017
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