µPD6121, 6122
The higher 8 bits of the custom code are determined by the diode connected to the CCS pin and KI/O pin.
Set custom code
Higher 8 bits of custom code
1
0
0
0
1
0
1
0
C0
C1
C2
C3
C4
C5
C6
C7
Set to “1” by diode
The inversion/non-inversion of the lower 8 bits of the custom code’ is determined by the pull-up resistor
connected to the KI/O pin.
Set custom code
Lower 8 bits of custom code’
1
0
0
0
1
0
0
0
’
C0’ C
1
’ C
2
’ C
3
’ C
4
’ C
5
’ C
6
C7’
Set to “1” by pull-up resistor,
that is, bit for non-inversion of custom code is set
1: Non-inversion for C
0
to C
7
0: Inversion for C to C
0
7
When the above-described setting is done, the following custom code is output.
Custom code
Higher 8 bits of custom code
Lower 8 bits of custom code’
1
0
0
0
1
0
1
0
1
1
1
1
1
1
0
1
C0
C1
C2
C3
C4
C5
C6
C7
C0’ C1’ C
2’ C
3’ C
4’ C
5’ C
6
’ C ’
7
C0
C1
C
2
C
3
C
4
C
5
C
6
C
7
Remark Codes are transmitted from the LSB.
7
NEC [ NEC ]
