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UPD750064CU Datasheet(PDF) 46 Page - NEC

Part # UPD750064CU
Description  4-BIT SINGLE-CHIP MICROCONTROLLERS
PDF  82 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD750064CU Datasheet(HTML) 46 Page - NEC

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µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
46
Data Sheet U10165EJ2V0DS00
Instruction
Number
Number
Addressing
Mnemonic
Operand
of Machine
Operation
Skip Condition
Group
of Bytes
Cycles
Area
Table
MOVT
XA, @PCDE
1
3
µPD750064
reference
XA
← (PC11–8+DE)ROM
µPD750066, 750068
XA
← (PC12–8+DE)ROM
XA, @PCXA
1
3
µPD750064
XA
← (PC11–8+XA)ROM
µPD750066, 750068
XA
← (PC12–8+XA)ROM
XA, @BCDE
1
3
XA
← (BCDE)ROMNote
*6
XA, @BCXA
1
3
XA
← (BCXA)ROMNote
*6
Bit transfer
MOV1
CY, fmem.bit
2
2
CY
← (fmem.bit)
*4
CY, pmem.@L
2
2
CY
← (pmem7–2+L3–2.bit(L1–0))
*5
CY, @H+mem.bit
2
2
CY
← (H+mem3–0.bit)
*1
fmem.bit, CY
2
2
(fmem.bit)
← CY
*4
pmem.@L, CY
2
2
(pmem7–2+L3–2.bit(L1–0))
← CY
*5
@H+mem.bit, CY
2
2
(H+mem3–0.bit)
← CY
*1
Operation
ADDS
A, #n4
1
1+S
A
← A+n4
carry
XA, #n8
2
2+S
XA
← XA+n8
carry
A, @HL
1
1+S
A
← A+(HL)
*1
carry
XA, rp'
2
2+S
XA
← XA+rp'
carry
rp'1, XA
2
2+S
rp'1
← rp'1+XA
carry
ADDC
A, @HL
1
1
A, CY
← A+(HL)+CY
*1
XA, rp'
2
2
XA, CY
← XA+rp'+CY
rp'1, XA
2
2
rp'1, CY
← rp'1+XA+CY
SUBS
A, @HL
1
1+S
A
← A–(HL)
*1
borrow
XA, rp'
2
2+S
XA
← XA–rp'
borrow
rp'1, XA
2
2+S
rp'1
← rp'1–XA
borrow
SUBC
A, @HL
1
1
A, CY
← A–(HL)–CY
*1
XA, rp'
2
2
XA, CY
← XA–rp'–CY
rp'1, XA
2
2
rp'1, CY
← rp'1–XA–CY
Note
Set “0” to register B if the
µPD750064 is used. Only low-order one bit of register B will be valid if the
µPD750066, 750068 is used.



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