W78E378 Datasheet, PDF (7/38 Pages) Winbond – MONITOR MICROCONTROLLER

Preliminary W78E378/W78C378/W78C374
FUNCTIONAL DESCRIPTION
Address Space
7FFFh
(3FFFh) ^Internal
Program Memory
0000h
FFh Internal RAM
256 Bytes
8051SFRs &
Serial Ports SFRs
Indirect Addressing Direct Addressing
"MOV @Ri"
"MOV"
80h
7Fh
Direct or Indirect
Addressing
"MOV" or "MOV @Ri"
00h
FFh On-Chip Data Memory
64 Bytes
External Access
C0h "MOVX @Ri"
BFh new SFRs
EExxtteerrnnaall AAcccceessss
80h ^{"M"MOOVVXX@@RRi"i"}
7FhOn-Chip Data Memory
128 Bytes
7Fh On-Chip Data Memory
128 Bytes
External Access
"MOVX @Ri"
00h
BANK0
External Access
"MOVX @Ri"
00h
BANK1
Program/Data/SFRs Address Space
SFRs accessed using 'Direct Addressing'
REGISTER ADDRESS
BITS
1 A*
2 B*
3 PSW*
4 SP
5 DPL
6 DPH
7 IE*
8 IP*
9 TCON*
10 TMOD
11 TL0
12 TH0
13 TL1
14 TH1
15 PCON
E0h
8
F0h
8
D0h
8
81h
8
82h
8
83h
8
A8h
8
B8h
8
88h
8
89h
8
8Ah
8
8Ch
8
8Bh
8
8Dh
8
87h
8
POWER
ON RESET
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
RESET
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
x0h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Publication Release Date: December 1999
-7-
Revision A1