UPD75238GJ NEC [NEC], UPD75238GJ Datasheet - Page 21

• Manufacturer Part Number: UPD75238GJ
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC [NEC]

Fig. 2-3 General Register Configuration (8-Bit Processing)
DE’
BC’
DE’
BC’
XA’
HL’
XA’
HL’
XA
HL
DE
BC
XA
HL
DE
BC
0AH
0CH
1AH
1CH
00H
02H
04H
06H
08H
0EH
10H
12H
14H
16H
18H
1EH
When RBE
= 0
When RBE
= 2
•
•
RBS
RBS
BC’
BC’
XA’
HL’
DE’
XA’
HL’
DE’
DE
BC
DE
BC
XA
HL
XA
HL
0AH
0CH
1AH
1CH
0EH
1EH
00H
02H
04H
06H
08H
10H
12H
14H
16H
18H
When RBE
= 1
When RBE
= 3
PD75238
•
•
RBS
RBS
21