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83C751 датащи(PDF) 11 Page - NXP Semiconductors

номер детали 83C751
подробное описание детали  80C51 8-bit microcontroller family 2K/64 OTP/ROM, I2C, low pin count
PDF  24 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

83C751 датащи(HTML) 11 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
83C751/87C751
80C51 8-bit microcontroller family
2K/64 OTP/ROM, I2C, low pin count
1998 May 01
11
Table 3.
8XC751 Special Function Registers
SYMBOL
DESCRIPTION
DIRECT
ADDRESS
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
MSB
LSB
RESET
VALUE
ACC*
Accumulator
E0H
E7
E6
E5
E4
E3
E2
E1
E0
00H
B*
B register
F0H
F7
F6
F5
F4
F3
F2
F1
F0
00H
DPTR:
DPH
DPL
Data pointer
(2 bytes)
High byte
Low byte
83H
82H
00H
00H
DF
DE
DD
DC
DB
DA
D9
D8
I2CFG*#
I2C configuration
D8H/RD
SLAVEN
MASTRQ
0
TIRUN
–
–
CT1
CT0
0000xx00B
WR
SLAVEN
MASTRQ
CLRTI
TIRUN
–
–
CT1
CT0
9F
9E
9D
9C
9B
9A
99
98
I2CON*#
I2C control
98H/RD
RDAT
ATN
DRDY
ARL
STR
STP
MASTER
–
81H
WR
CXA
IDLE
CDR
CARL
CSTR
CSTP
XSTR
XSTP
I2DAT#
I2C data
99H/RD
RDAT
0
0
0
0
0
0
0
80H
WR
XDAT
X
X
X
X
X
X
X
FF
FE
FD
FC
FB
FA
F9
F8
I2STA*#
I2C status
F8H
–
IDLE
XDATA
XACTV
MAKSTR
MAKSTP
XSTR
XSTP
x0100000B
AF
AE
AD
AC
AB
AA
A9
A8
IE*#
Interrupt enable
ABH
EA
–
–
EI2
ET1
EX1
ET0
EX0
00H
82
81
80
P0*#
Port 0
80H
–
–
–
–
–
–
SDA
SCL
xxxxx111B
97
96
95
94
93
92
91
90
P1*
Port 1
90H
T0
INT1
INT0
–
–
–
–
–
FFH
P3*
Port 3
B0H
B7
B6
B5
B4
B3
B2
B1
B0
FFH
PCON#
Power control
87H
–
–
–
–
–
–
PD
IDL
xxxxxx00B
D7
D6
D5
D4
D3
D2
D1
D0
PSW*
Program status word
D0H
CY
AC
F0
RS1
RS0
OV
–
P
00H
SP
Stack pointer
81H
07H
8F
8E
8D
8C
8B
8A
89
88
TCON*#
Timer/counter control
88H
GATE
C/T
TF
TR
IE0
IT0
IE1
IT1
00H
TL#
Timer low byte
8AH
00H
TH#
Timer high byte
8CH
00H
RTL#
Timer low reload
8BH
00H
RTH#
Timer high reload
8DH
00H
*
SFRs are bit addressable.
#
SFRs are modified from or added to the 80C51 SFRs.



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