UPD75218 NEC, UPD75218 Datasheet - Page 37

• Manufacturer Part Number: UPD75218
• Description: 4-BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

Instruction
CPU
control
Special
Note
The TBR and TCALL instructions are table definition assembler pseudo instructions of the GETI
instructions.
Mnemonic
HALT
STOP
NOP
SEL
GETI
Note
RBn
MBn
taddr
Operand
Number
of bytes
2
2
1
2
2
1
Machine
cycle
2
2
1
2
2
3
4
3
Set HALT mode (PCC.2
Set STOP mode (PCC.3
No operation
RBS
MBS
• For a TBR instruction
• For a TCALL instruction
• For an instruction other than TBR
PC
PC
(SP-6)(SP-3)(SP-4)
(SP-5)
(SP-2)
PC
SP
and TCALL
Executes the instruction in
(taddr)(taddr+1).
13-0
14
13-0
n (n=0-3)
n (n=0,1,2,3,15)
SP-6 PC
0
(taddr)
(taddr)
0, PC
Operation
, ,MBE,RBE
14
14
5-0
5-0
, PC
+ (taddr+1)
+ (taddr+1)
0
13
PC
, PC
11-0
1)
1)
12
Address-
ing area
*10
Depends
upon the
referenced
instruction.
Skip
condition
PD75218
37