DS89C420 Dallas Semiconducotr, DS89C420 Datasheet - Page 9

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DS89C420

Manufacturer Part Number
DS89C420
Description
Ultra-High-Speed Microcontroller
Manufacturer
Dallas Semiconducotr
Datasheet

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REGISTER ADDR
Table 2. Special Function Registers
P0
SP
DPL
DPH
DPL1
DPH1
DPS
PCON
TCON
TMOD
TL0
TL1
TH0
TH1
CKCON
P1
EXIF
CKMOD
SCON0
SBUF0
ACON
P2
IE
SADDR0
SADDR1
P3
IP1
IP0
SADEN0
SADEN1
SCON1
SBUF1
ROMSIZE
PMR
STATUS
TA
T2CON
T2MOD
RCAP2L
AAh
BAh
CAh
8Ah
8Bh
8Ch
8Dh
9Dh
A0h
A8h
A9h
B0h
B1h
B8h
B9h
C0h
C2h
C4h
C5h
C7h
C8h
C9h
8Eh
C1h
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
90h
91h
96h
98h
99h
P1.7/
SM0/FE_0
SM0/FE_1
SMOD_0
P3.7/ RD
PAGEE
BIT7
GATE
WD1
CD1
PIS2
P0.7
P2.7
TF1
TF2
ID1
IE5
EA
INT
5
P1.6/INT4
P3.6/ WR
PAGES1
SMOD0
SM1_0
SM1_1
BIT6
MPS1
EXF2
LPS1
WD0
C/ T
CD0
PIS1
P0.6
TR1
P2.6
ES1
ID0
IE4
P1.5/
PAGES0
P3.5/T1
SM2_0
SM2_1
T2MH
RCLK
BIT5
OFDF
MPT2
LPT2
SWB
T2M
PIS0
P0.5
P2.5
TSL
TF0
ET2
M1
IE3
INT
9 of 59
3
P1.4/INT2
P3.4/T0
REN_0
REN_1
T1MH
BIT4
OFDE
TCLK
MPS0
LPS0
CTM
T1M
P0.4
AID
TR0
P2.4
ES0
IE2
M0
P1.3/TXD1
P3.3/
PRAME
4X/ X
EXEN2
SPTA1
CKRY
TB8_0
TB8_1
BIT3
GATE
T0MH
MPT1
LPT1
T0M
P0.3
GF1
P2.3
ET1
IE1
INT
2
1
P1.2/RXD1
P3.2/
ALEON
RGMD
SPRA1
RB8_0
RB8_1
BIT2
MPX1
RMS2
LPX1
C/ T
MD2
P0.2
GF0
P2.2
EX1
TR2
IT1
INT
0
P3.1/TXD0
P1.1/T2EX
SPTA0
DME1
BIT1
MPT0
RMS1
STOP
RGSL
C/ 2
T2OE
LPT0
MD1
TI_0
TI_1
P0.1
P2.1
ET0
IE0
M1
T
P3.0/RXD0
CP/
P1.0/T2
SPRA0
DME0
DCEN
BIT0
MPX0
RMS0
LPX0
IDLE
MD0
RI_0
RI_1
BGS
EX0
P0.0
SEL
P2.0
IT0
M0
RL
2

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