UPD75518 NEC, UPD75518 Datasheet - Page 28

• Manufacturer Part Number: UPD75518
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

28
000AH
000CH
0000H
0002H
0004H
0006H
0008H
0020H
007FH
0080H
07FFH
0800H
0FFFH
1000H
1FFFH
2000H
2FFFH
3000H
3FFFH
4000H
4FFFH
5000H
5FFFH
6000H
6FFFH
7000H
7F7FH
Caution The start address of an interrupt vector shown above consists of 14 bits. So, the start address
Remark In addition to the above, the BR PCDE and BR PCXA instructions can cause a branch to an address
MBE
MBE
MBE
MBE
MBE
MBE
MBE
7
with only the low-order 8 bits of the PC changed.
must be set within a 16K-byte space (0000H to 3FFFH).
RBE
RBE
RBE
RBE
RBE
RBE
RBE
6
Internal reset start address
Internal reset start address
INTBT/INT4 start address
INTBT/INT4 start address
INT0 start address
INT0 start address
INT1 start address
INT1 start address
INTCSI0 start address
INTCSI0 start address
INTT0 start address
INTT0 start address
INTTPG start address
INTTPG start address
GETI instruction reference table
Fig. 3-2 Program Memory Map
(high-order 6 bits)
(low-order 8 bits)
(high-order 6 bits)
(low-order 8 bits)
(high-order 6 bits)
(low-order 8 bits)
(high-order 6 bits)
(low-order 8 bits)
(high-order 6 bits)
(low-order 8 bits)
(high-order 6 bits)
(low-order 8 bits)
(high-order 6 bits)
(low-order 8 bits)
0
BRCB !caddr instruction
branch address
BRCB !caddr instruction
branch address
BRCB !caddr instruction
branch address
BRCB !caddr instruction
branch address
BRCB !caddr instruction
branch address
BRCB !caddr instruction
branch address
BRCB !caddr instruction
branch address
CALLF
!faddr
instruction
entry
address
BRCB
!caddr
instruction
branch
address
BR !addr
instruction
branch
address
CALL addr
instruction
branch
address
Branch/call
address specified
in GETI
insturction
BR BCDE
BR BCXA
branch address
BRA !addr
instruction
branch address
CALLA !addr
instruction branch
address
BR $addr
instruction
relative
branch address
(–15 to –1,
+2 to +16)
PD75518(A)