Z8 Microcontrollers
ZiLOG Address Space
UM001601-0803 2-3
Tab le 2-2. Working Register Groups
Register Pointer Working Actual
(FDH) Register Group Registers
High Nibble (HEX) (HEX)
1111(B) F F0–FF
1110(B) E E0–EF
1101(B) D D0–DF
1100(B) C C0–CF
1011(B) B B0–BF
1010(B) A A0–AF
1001(B) 9 90–9F
1000(B) 8 80–8F
0111(B) 7 70–7F
0110(B) 6 60–6F
0101(B) 5 50–5F
0100(B) 4 40–4F
0011(B) 3 30–3F
0010(B) 2 20–2F
0001(B) 1 10–1F
0000(B) 0 00–0F
Figure 2-3. Working Register Addressing Examples
0 1 1 1 0 1 1 0
Register Pointer (FHD), Standard Register File
0 1 1 1 0 0 0 0
1 1 0 1 1 1 1 1
INC R6 (Instruction, Short Format)
Actual Register Address (76H)
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