![](http://datasheet.mmic.net.cn/370000/UPD75236GJ_datasheet_16740772/UPD75236GJ_18.png)
18
μ
PD75236
Table 2-1 Addressing Modes
Addressing Mode
Identifier
Address Specified
MBE = 0
Bit indicated by bit of address indicated by MB and mem, where :
When mem = 00H to 7FH, MB = 0
When mem = 80H to FFH, MB = 15
MBE = 1
MB = MBS
Address indicated by MB and mem, where :
MBE = 0
When mem = 00H to 7FH, MB = 0
When mem = 80H to FFH, MB = 15
MBE = 1
MB = MBS
Address indicated by MB and mem (mem is an even address), where:
MBE = 0
When mem = 00H to 7FH, MB = 0
When mem = 80H to FFH, MB = 15
MBE = 1
MB = MBS
Address indicated by MB and HL, where : MB = MBE MBS
Address indicated by MB and HL, where : MB = MBE MBS
HL+ automatically increments L register after addressing.
HL– automatically decrements L register after addressing.
Address indicated by DE of memory bank 0
Address indicated by DL of memory bank 0
Address indicated by MB and HL, where : MB = MBE MBS
Bit 0 of L register is ignored.
Bit indicated by bit of address indicated by fmem, where:
FB0H to FBFH (interrupt-related hardware)
FF0H to FFFH (I/O port)
Bit indicated by the lower 2 bits of L register of the address indicated by the
higher 10 bits of pmem and the higher 2 bits of L register, where:
pmem = FC0H to FFFH
Bit indicated by bit of the address indicated by MB, H and the lower 4 bits of mem,
where: MB = MBE MBS
Address indicated by SP of memory banks 0, 1 and 2 selected by SBS
mem.bit
mem
@HL
@HL+ @HL–
@DE
@DL
@HL
fmem.bit
pmem.@L
@H + mem.bit
1-bit direct addressing
4-bit direct addressing
8-bit direct addressing
4-bit register indirect
addressing
8-bit register indirect
addressing
Bit manipulation
addressing
Stack addressing
As described in Table 2-1, direct and indirect addressing is possible for each of 1-bit, 4-bit and 8-bit data in
μ
PD75236 data memory manipulation. Thus, easy-to-understand programs can be created very efficiently.
fmem =