GMS90 Series
HYUNDAI MicroElectronics
Table 3. Contents of SFRs, SFRs in Numeric Order
Address
Register
Bit 7
6
5
4
3
2
1
0
80H
P0
81H
82H
83H
87H
88H
89H
8AH
8BH
8CH
8DH
8EH
SP
DPL
DPH
PCON
TCON
TMOD
TL0
SM OD
TF1
-
-
-
GF1
IE1
GF0
IT1
PDE
IE0
M1
IDLE
IT0
TR1
C/T
TF0
M1
TR0
MT
GATE
GATE
C/T
M0
TL1
TH0
TH1
AUXR0 †
P1
A0 †
RI
-
-
-
-
-
-
-
90H
98H
99H
A0H
A8H
B0H
B8H
SCON
SBUF
P2
SM0
SM1
SM2
REN
TB8
RB8
TI
IE
EA
-
-
-
ET2
PT2
ES
PS
ET1
PT1
EX1
PX1
ET0
PT0
EX0
PX0
P3
IP
† indicates resident in the GMS9XX54/56/58, not in 9XX51/52.
SFR bit and byte addressable
SFR not bit addressable
- : this bit location is reserved
Oct. 2000 Ver 3.1a
17