W77C58 Datasheet, PDF (7/71 Pages) Winbond – 8 BIT MICROCONTROLLER

Preliminary W77C58
FFh
80h
7Fh
00h
Indirect
Addressing
RAM
Direct &
Indirect
Addressing
RAM
SFRs
Direct
Addressing
only
FFFFh
64 K
Bytes
External
Data
Memory
03FFh
0000h
1K Bytes
On-chip SRAM
0000h
Figure 1. Memory Map
FFFFh
32K bytes
External
Program
Memory
7FFFh
0000h
32K bytes
On-chip
Program
Memory
FFh
80h
Indirect RAM
7Fh
Direct RAM
30h
2Fh _{7F 7E 7D 7C 7B 7A 79}
2Eh ₇₇
76
75
74
73
72
71
2Dh _{6F 6E 6D 6C 6B 6A 69}
2Ch ₆₇
66
65
64
63
62
61
2Bh _{5F 5E 5D 5C 5B 5A 59}
2Ah ₅₇
56
55
54
53
52
51
29h _{4F 4E 4D 4C 4B 4A 49}
28h ₄₇
46
45
44
43
42
41
27h _{3F 3E 3D 3C 3B 3A 39}
26h ₃₇
36
35
34
33
32
31
25h _{2F 2E 2D 2C 2B 2A 29}
24h ₂₇
26
25
24
23
22
21
23h _{1F 1E 1D 1C 1B 1A 19}
22h ₁₇
16
15
14
13
12
11
21h _{0F 0E 0D 0C 0B 0A 09}
20h ₀₇
06
05
04
03
02
01
1Fh
18h
Bank 3
17h
10h
Bank 2
0Fh
08h
Bank 1
07h
00h
Bank 0
Figure 2. Scratchpad RAM / Register Addressing
78
70
68
60
58
50
48
40 _{Bit Addressable}
38
30 ^20H−2FH
28
20
18
10
08
00
Publication Release Date: September 1999
-7-
Revision A1