DS87C530_05 Datasheet, PDF (9/47 Pages) Dallas Semiconductor – EPROM/ROM Microcontrollers with Real-Time Clock

DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
Table 1. Special Function Register Locations
* Functions not present in the 80C52 are in bold.
REGISTER BIT 7
P0
P0.7
BIT 6
P0.6
BIT 5
P0.5
BIT 4
P0.4
BIT 3
P0.3
SP
DPL
DPH
DPL1
DPH1
DPS
PCON
TCON
0
0
0
0
0
SMOD_0 _SMOD0
—
—
GF1
TF1
TR1
TF0
TR0
IE1
TMOD
GATE _{C/ T}
M1
M0
GATE
TL0
TL1
TH0
TH1
CKCON
WD1
WD0 T2M
T1M
T0M
P1
P1.7
P1.6
P1.5
P1.4
P1.3
EXIF
IE5
IE4
IE3
IE2 XT/RG
TRIM
E4K X12/ 6 TRM2 _TRM2 TRM1
SCON0
SM0/FE_0 SM1_0 SM2_0 REN_0 TB8_0
SBUF0
P2
P2.7
P2.6
P2.5
P2.4
P2.3
IE
EA
ES1
ET2
ES0
ET1
SADDR0
SADDR1
P3
P3.7
P3.6
P3.5
P3.4
P3.3
IP
—
PS1
PT2
PS0
PT1
SADEN0
SADEN1
SCON1
SM0/FE_1 SM1_1 SM2_1 REN_1 TB8_1
SBUF1
ROMSIZE
—
—
—
—
—
PMR
STATUS
TA
CD1
CD0
SWB
—
XTOFF
PIP
HIP
LIP
XTUP SPTA1
T2CON
TF2
EXF2 RCLK TCLK EXEN2
T2MOD
—
—
—
—
—
RCAP2L
RCAP2H
BIT 2
P0.2
0
GF0
IT1
C/ T
MD2
P1.2
RGMD
TRM1
RB8_0
P2.2
EX1
P3.2
PX1
RB8_1
RMS2
ALEOFF
SPRA1
TR2
—
BIT 1
P0.1
0
STOP
IE0
M1
MD1
P1.1
RGSL
TRM0
TI_0
P2.1
ET0
P3.1
PT0
TI_1
RMS1
DME1
SPTA0
C/ T2
T2OE
BIT 0
P0.0
SEL
IDLE
IT0
M0
MD0
P1.0
BGS
TRM0
RI_0
P2.0
EX0
P3.0
PX0
RI_1
RMS0
DME0
SPRA0
CP/ RL2
DCEN
ADDRESS
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Ch
8Dh
8Eh
90h
91h
96h
98h
99h
A0h
A8h
A9h
AAh
B0h
B8h
B9h
BAh
C0h
C1h
C2h
C4h
C5h
C7h
C8h
C9h
CAh
CBh
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