DS87C530_1 Datasheet, PDF (8/44 Pages) Dallas Semiconductor – EPROM/ROM Micro with Real Time Clock

SPECIAL FUNCTION REGISTER LOCATIONS Table 2
* Functions not present in the 80C52 are in bold
REGISTER BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1
P0
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
SP
DPL
DPH
DPL1
DPH1
DPS
PCON
TCON
0
0
0
0
0
0
0
SMOD_0 SMOD0 -
-
GF1
GF0
STOP
TF1
TR1
TF0
TR0
IE1
IT1
IE0
TMOD
GATE _{C/ T}
M1
M0
GATE _{C/ T}
M1
TL0
TL1
TH0
TH1
CKCON WD1
WD0 T2M
T1M
T0M
MD2
MD1
P1
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
EXIF
IE5
IE4
IE3
IE2
XT/RG RGMD RGSL
TRIM
E4K
X12/ 6 TRM2 TRM2 TRM1 TRM1 TRM0
SCON0
SM0/FE_0 SM1_0 SM2_0 REN_0 TB8_0 RB8_0 TI_0
SBUF0
P2
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
IE
EA
ES1
ET2
ES0
ET1
EX1
ET0
SADDR0
SADDR1
P3
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
IP
-
PS1
PT2
PS0
PT1
PX1
PT0
SADEN0
SADEN1
SCON1
SM0/FE_1 SM1_1 SM2_1 REN_1 TB8_1 RB8_1 TI_1
SBUF1
ROMSIZE -
-
-
-
-
RMS2 RMS1
PMR
CD1
CD0
SWB -
XTOFF ALEOFF DME1
STATUS PIP
HIP
LIP
XTUP SPTA1 SPRA1 SPTA0
TA
T2CON
TF2
EXF2 RCLK TCLK EXEN2 TR2
C/ T2
T2MOD
-
-
-
-
-
-
T2OE
RCAP2L
RCAP2H
TL2
TH2
DS87C530/DS83C530
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
CCh
CDh
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