Memory configuration – NEC uPD75P3116 User Manual
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PD75P3116
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Data Sheet U11369EJ3V0DS
6. MEMORY CONFIGURATION
Figure 6-1. Program Memory Map
Note
Can only be used in the Mk II mode.
Remark
For instructions other than those noted above, the BR PCDE and BR PCXA instructions can be used to branch
to addresses with changes in the PC’s lower 8 bits only.
MBE
MBE
MBE
MBE
MBE
MBE
MBE
RBE
RBE
RBE
RBE
RBE
RBE
RBE
Internal reset start address (higher 6 bits)
Internal reset start address (lower 8 bits)
INTBT/INT4 start address (higher 6 bits)
INTBT/INT4 start address (lower 8 bits)
INT0 start address (higher 6 bits)
INT0 start address (lower 8 bits)
INT1 start address (higher 6 bits)
INT1 start address (lower 8 bits)
INTCSI start address (higher 6 bits)
INTCSI start address (lower 8 bits)
INTT0 start address (higher 6 bits)
INTT0 start address (lower 8 bits)
INTT1/INTT2 start address (higher 6 bits)
INTT1/INTT2 start address (lower 8 bits)
Reference table for GETI instruction
0000H
0002H
0004H
0006H
0008H
000AH
000CH
0020H
007FH
0080H
07FFH
0800H
0FFFH
1000H
1FFFH
2000H
2FFFH
3000H
3FFFH
CALLF
!faddr instruction
entry address
Branch addresses for
the following instructions
• BR !addr
• CALL !addr
• BRA !addr1
• CALLA !addr1
• BR BCDE
• BR BCXA
Branch/call
address
by GETI
BR $addr instruction
relative branch address
(–15 to –1,
+2 to +16)
BRCB
!caddr instruction
branch address
BRCB
!caddr instruction
branch address
BRCB
!caddr instruction
branch address
BRCB
!caddr instruction
branch address
7
6
5
0
Note
Note