UPD6P8 NEC [NEC], UPD6P8 Datasheet - Page 52

• Manufacturer Part Number: UPD6P8
• Description: MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC [NEC]

52
MOV R0n, A
MOV R1n, A
MOV Rn, #data8
MOV Rn, @R0
<1> Instruction code:
<2> Cycle count:
<3> Function:
<1> Instruction code:
<2> Cycle count:
<3> Function:
<1> Instruction code:
<2> Cycle count:
<3> Function:
b
9
The accumulator contents are transferred to register Rmn.
The immediate data is transferred to the register. Using this instruction, registers operate as register
pairs.
The pair combinations are as follows:
The program memory contents specified by control register P13 and register pair R
transferred to register pair R1n to R0n. The program memory consists of 10 bits and has the following
state after the transfer to the register.
The higher 2 to 4 bits of the program memory address are specified by the control register (P13).
b
7
R
R
R
R
b
6
0
1
E
F
: R
: R
: R
: R
Program memory
b
5
10
11
:
1E
1F
- R
- R
b
- R
- R
4
@R0
:
00
01
0F
0E
1
(Rmn) ← (A) m = 0, 1 n = 0 to F
1
(R1n-R0n) ← data8 n = 0 to F
1
(R1n-R0n) ← ((P13), R0)) n = 1 to F
b
0 0 1 0 R
0 0 1 1 0 0 R
0 0 1 1 1 0 R
0 d
8
Lower column
Higher column
7
d
6
b
d
3
5
d
b
4
4
2
0 R
0 d
Data Sheet U17848EJ3V0DS
b
3
3
3
3
1
R
R
R
d
2
2
2
2
R
R
R
d
b
1
1
1
1
0
R
R
R
d
0
0
0
0
→
b
9
b
7
b
6
R1n
b
5
b
4
µ PD6P8, 6P8A, 6P8B
b
8
b
3
b
2
R0n
10
b
1
to R
b
0
00
are