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F7 F6 F5 F4 F3 F2 F1 F0
E7 E6 E5 E4 E3 E2 E1 E0
C AC F0 RS1 RS0 OV P
D7 D6 D5 D4 D3 D2 D1 D0
PA3 PA2 PA1 PA0 RA32/8 ECE2
PAA
SL
RWT PS PT1 PX1 PT0 PX0
BF – – BC BB BA B9 B8
B7 B6 B5 B4 B3 B2 B1 B0
EA ES ET1 EX1 ET0 EX0
AF – – AC AB AA A9 A8
A7 A6 A5 A4 A3 A2 A1 A0
SM0 SM1 SM2 REN TB8 RB8 TI RI
9F 9E 9D 9C 9B 9A 99 98
97 96 95 94 93 92 91 90
GATE C/T M1 M0 GATE C/T M1 M0
TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0
8F 8E 8D 8C 8B 8A 89 88
SMOD POR
PFW
WTR
EPFW
EWT
STOP IDL
DIRECT BYTE
ADDRESS
SPECIAL FUNCTION
REGISTER SYMBOL
BIT ADDRESS
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
NOT BIT ADDRESSABLE
87 86 85 84 83 82 81 80
0F0H
0E0H
0D0H
0C7H
0C6H
0B8H
0B0H
0A8H
0A0H
99H
98H
90H
8DH
8CH
8BH
8AH
89H
88H
87H
83H
82H
81H
80H
B
ACC
PSW
TA
MCON
IP
P3
IE
P2
SBUF
SCON
P1
TH1
TH0
TL1
TL0
TMOD
TCON
PCON
DPH
DPL
SP
P0
(MSB)
(LSB)
* BITS IN ITALICS ARE NONVOLATILE
USER’S GUIDE
050396 28/173
29
DS5000 SERIES SPECIAL FUNCTION REGISTER MAP Figure 4–12