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UPD75328 Datasheet(PDF) 39 Page - NEC

Part # UPD75328
Description  4-BIT SINGLE-CHIP MICROCOMPUTER
PDF  66 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD75328 Datasheet(HTML) 39 Page - NEC

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39
µPD75328
Ma-
Ad-
Instruc-
Mne-
Operand
Bytes
chine
Operation
dress-
Skip
tions
monics
Cyc-
ing
Conditions
les
Area
Branch
BR
addr
—
—
PC12-0
← addr
*6
(The most suitable instruction
is selectable from among BR
!addr, BRCB !caddr, and BR
$addr depending on the
assembler.)
!addr
3
3
PC12-0
← addr
*6
$addr
1
2
PC12-0
← addr
*7
BRCB
!caddr
2
2
PC11-0
← caddr11-0
*8
Subrou-
CALL
!addr
3
3
(SP-4)(SP-1)(SP-2)
← PC11-0
*6
tine/
(SP-3)
← MBE, 0, 0, PC12
Stack
PC12-0
← addr, SP ← SP-4
Control
CALLF
!faddr
2
2
(SP-4)(SP-1)(SP-2)
← PC11-0
*9
(SP-3)
← MBE, 0, 0, PC12
PC12-0
← 00, faddr, SP ← SP-4
RET
1
3
MBE, x, x, PC12
← (SP+1)
PC11-0
← (SP)(SP+3)(SP+2)
SP
← SP+4
RETS
1
3+S
MBE, x, x, PC12
← (SP+1)
Undefined
PC11-0
← (SP)(SP+3)(SP+2)
SP
← SP+4, then skip unconditionally
RET1
1
3
MBE, x, x, PC12
← (SP+1)
PC11-0
← (SP)(SP+3)(SP+2)
PSW
← (SP+4)(SP+5), SP ← SP+6
PUSH
rp
1
1
(SP-1)(SP-2)
← rp, SP ← SP-2
BS
2
2
(SP-1)
← MBS, (SP-2) ← 0, SP ← SP-2
POP
rp
1
1
rp
← (SP+1)(SP), SP ← SP+2
BS
2
2
MBS
← (SP+1), SP ← SP+2
Inter-
EI
2
2
IME
← 1
rupt
IExxx
2
2
IExxx
← 1
Control
DI
2
2
IME
← 0
IExxx
2
2
IExxx
← 0
I/O
IN
*1
A,PORTn
2
2
A
← PORTn
(n = 0-8)
XA,PORTn
2
2
XA
← PORTn+1,PORTn
(n = 4, 6)
OUT *1
PORTn,A
2
2
PORTn
← A
(n = 2-8)
PORTn,XA
2
2
PORTn+1,PORTn
← XA (n = 4, 6)
CPU
HALT
2
2
Set HALT Mode (PCC.2
← 1)
Control
STOP
2
2
Set STOP Mode (PCC.3
← 1)
NOP
1
1
No Operation
Special
SEL
MBn
2
2
MBS
← n (n = 0, 1, 15)
GETI *2
taddr
1
3
. Where TBR instruction,
*10
PC12-0
← (taddr)4-0+(taddr+1)
. Where TCALL instruction,
(SP-4)(SP-1)(SP-2)
← PC11-0
(SP-3)
← MBE, 0, 0, PC12
PC12-0
← (taddr)4-0+(taddr+1)
SP
← SP-4
. Except for TBR and TCALL
Depends on
instructions,
referenced
Instruction execution of
instruction
(taddr)(taddr+1)
*1: When executing the IN/OUT instruction, MBE = 0, or MBE = 1, and MBS = 15.
2: The TBR, and TCALL instructions are the assembler pseudo-instructions for the table definition of
GETI instruction.
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