 English |
|
|
|
|
|
|
|
| UPD75104A Datasheet, PDF (41/66 Pages) NEC – 4-BIT SINGLE-CHIP MICROCOMPUTER | |||
| |||
| ◁ |
µPD75104A, 75108A
Instruc- Mne-
tions
monics
Operand
Inter- EI
rupt
Control DI
I/O
IN*
OUT*
CPU
HALT
Control STOP
NOP
Special SEL
GETI
IExxx
IExxx
A, PORTn
XA, PORTn
PORTn, A
PORTn, XA
RBn
MBn
taddr
Ma-
chine
Bytes Cyc-
les
Operation
Addressing
Area
Skip
Conditions
2
2 IME (IPS.3) â 1
2
2 IExxx â 1
2
2 IME (IPS.3) â 0
2
2 IExxx â 0
2
2 A â PORTn
(n = 0-9, 12-14)
2
2
XA â PORTn+1,PORTn (n = 4, 6, 8, 12)
2
2 PORTn â A
(n = 2-9, 12-14)
2
2
PORTn+1, PORTn â XA(n = 4, 6, 8, 12)
2
2 Set HALT Mode (PCC.2 â 1)
2
2 Set STOP Mode (PCC.3 â 1)
1
1 No Operation
2
2 RBS â n (n = 0-3)
2
2 MBS â n (n = 0, 1, 15)
1
3 ⢠µPD75104A
*10
⢠Where TBR instruction,
.....P...C..1.1..-.0..â.....(.t.a...d..d..r..).3.-.0.+...(.t.a..d..d...r.+..1..)....
⢠Where TCALL instruction,
(SP-4)(SP-1)(SP-2) â PC11-0
(SP-3) â MBE, RBE, 0, 0
PC11-0 â (taddr)3-0+(taddr+1)
SP â SP-4
.........................................................
⢠Except for TBR and TCALL
instructions,
Instruction execution of
(taddr)(taddr+1)
.............................
Depends on
referenced
instruction
⢠µPD75108A
⢠Where TBR instruction,
.....P..C...1.2..-0...â.....(.t.a..d...d..r.)..4.-.0.+..(..t.a..d..d...r.+..1..)....
⢠Where TCALL instruction,
(SP-4)(SP-1)(SP-2) â PC11-0
(SP-3) â MBE, RBE, 0, PC12
PC12-0 â (taddr)4-0+(taddr+1)
SP â SP-4
.........................................................
⢠Except for TBR and TCALL
instructions,
Instruction execution of
(taddr)(taddr+1)
.............................
Depends on
referenced
instruction
*: When executing the IN/OUT instruction, MBE = 0, or MBE = 1, and MBS = 15.
Remarks: TBR and TCALL instructions are assembler instructions for GETI instruction table definition.
5
41
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese