Product data

HD404818 Series
74
d
9
d
8
d
7
d
6
d
5
d
4
d
3
d
2
d
1
d
0
Instruction 2nd word
Opcode
Instruction 1st word
[JMPL]
[BRL]
[CALL]
PC
9
PC
8
PC
7
PC
6
PC
5
PC
4
PC
3
PC
2
PC
1
PC
0
PCPCPCPC
10111213
Program counter
Direct Addressing
Zero Page Addressing
a
5
a
4
a
3
a
2
a
1
a
0
Instruction
[CAL]
Opcode
PC
98
PC
76
PC
54
PC
3
PC
1
PC
0
PCPC
10111213
Program counter
00000000
PCPC PC
PC PC
PC
2
B
1
B
0
A
3
A
2
A
1
A
0
Accumulator
Program counter
Table Data Addressing
PC
9
PC
8
PC
7
PC
6
PC
5
PC
4
PC
3
PC
2
PC
1
PC
0
PCPCPC
10111213
B
2
B
3
B register
P
3
P
0
[TBR]
Instruction
Opcode
00
P
2
P
1
PC
Opcode
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
Instruction
PC
90
PCPCPC
111213
Program counter
Current Page Addressing
[BR]
PC
10 7
PC
6
PC
5
PC
4
PC
3
PC
2
PC
1
PCPC
8
PC
p
0
p
1
p
2
p
3
Figure 40 ROM Addressing Modes