UPD62A NEC, UPD62A Datasheet - Page 42

• Manufacturer Part Number: UPD62A
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

9.7 Branch Instructions
performs page optimization, it is unnecessary to designate pages. The pages allowed for each product are as
follows.
42
The program memory consists of pages in steps of 1K (000H to 3FFH). However, as the assembler automatically
JMP addr
JC addr
JNC addr
JF addr
JNF addr
PD62A (ROM: 0.5 K steps):
PD6P4B (PROM: 1 K steps) :
<1> Instruction code: page 0
<2> Cycle count:
<3> Function:
<1> Instruction code: page 0
<2> Cycle count:
<3> Function:
<1> Instruction code: page 0
<2> Cycle count:
<3> Function:
<1> Instruction code: page 0
<2> Cycle count:
<3> Function:
<1> Instruction code: page 0
<2> Cycle count:
<3> Function:
The 10 bits (PC
a
If the carry flag CY is set (to 1), a jump is made to the address specified with addr (a
If the carry flag CY is cleared (to 0), a jump is made to the address specified with addr (a
If the status flag F is set (to 1), a jump is made to the address specified with addr (a
If the status flag F is cleared (to 0), a jump is made to the address specified with addr (a
0
).
9-0
) of the program counter are replaced directly by the specified address addr (a
1
PC
1
If CY = 1 PC
else PC
1
If CY = 0 PC
1
If F = 1 PC
1
If F = 0 PC
else PC
a
a
a
a
a
9
9
9
else PC
9
else PC
9
a
a
a
a
a
7
7
7
7
7
a
a
a
a
a
6
6
6
6
6
a
addr
a
a
a
a
5
5
5
5
5
a
a
a
a
a
4
4
4
4
4
0 1 0 0 0 1 0 0 0 1
0 1 1 0 0 1 0 0 0 1
0 1 1 0 1 1 0 0 0 1
0 1 1 1 0 1 0 0 0 1
0 1 1 1 1 1 0 0 0 1
a
a
a
a
a
8
8
8
8
8
page 0
page 0
PC + 2
PC + 2
Data Sheet U14474EJ1V0DS00
a
a
a
a
a
3
3
3
3
3
PC + 2
PC + 2
a
a
a
a
a
2
2
2
2
2
a
a
a
a
a
addr
addr
1
1
1
1
1
a
a
a
a
a
addr
addr
0
0
0
0
0
; page 1
; page 1
; page 1
; page 1
; page 1
0 1 0 0 1 1 0 0 0 1
0 1 0 1 0 1 0 0 0 1
0 1 0 1 1 1 0 0 0 1
1 0 0 0 0 1 0 0 0 1
1 0 0 0 1 1 0 0 0 1
9
9
to a
to a
9
9
0
to a
0
).
to a
).
0
0
).
).
PD62A
9
to