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P89LPC901 데이터시트(PDF) 21 Page - NXP Semiconductors

부품명 P89LPC901
상세설명  8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
PDF  55 Pages
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
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P89LPC901 데이터시트(HTML) 21 Page - NXP Semiconductors

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Table 9:
P89LPC903 Special function registers
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
Bit functions and addresses
Reset value
MSB
LSB
Hex
Binary
Bit address
E7
E6
E5
E4
E3
E2
E1
E0
ACC*
Accumulator
E0H
00
00000000
AUXR1
Auxiliary function register
A2H
-
EBRR
-
-
SRST
0
-
DPS
00[1]
000000x0
Bit address
F7
F6
F5
F4
F3
F2
F1
F0
B*
B register
F0H
00
00000000
BRGR0[2]
Baud rate generator rate
LOW
BEH
00
00000000
BRGR1[2]
Baud rate generator rate
HIGH
BFH
00
00000000
BRGCON
Baud rate generator control
BDH
------
SBRGS
BRGEN
00[6]
xxxxxx00
CMP1
Comparator 1 control register
ACH
-
-
CE1
-
CN1
-
CO1
CMF1
00[1]
xx000000
CMP2
Comparator 2 control register
ADH
-
-
CE2
-
CN2
-
CO2
CMF2
00[1]
xx000000
DIVM
CPU clock divide-by-M
control
95H
00
00000000
DPTR
Data pointer (2 bytes)
DPH
Data pointer HIGH
83H
00
00000000
DPL
Data pointer LOW
82H
00
00000000
FMADRH
Program Flash address HIGH
E7H
00
00000000
FMADRL
Program Flash address LOW
E6H
00
00000000
FMCON
Program Flash Control
(Read)
E4H
BUSY
-
-
-
HVA
HVE
SV
OI
70
01110000
Program Flash Control
(Write)
FMCMD.
7
FMCMD.
6
FMCMD.
5
FMCMD.
4
FMCMD.
3
FMCMD.
2
FMCMD.
1
FMCMD.
0
FMDATA
Program Flash data
E5H
00
00000000
IEN0*
Interrupt enable 0
A8H
EA
EWDRT
EBO
ES/ESR
ET1
-
ET0
-
00
00000000
Bit address
EF
EE
ED
EC
EB
EA
E9
E8
IEN1*
Interrupt enable 1
E8H
-
EST
-
-
-
EC
EKBI
-
00[1]
00x00000
Bit address
BF
BE
BD
BC
BB
BA
B9
B8
IP0*
Interrupt priority 0
B8H
-
PWDRT
PBO
PS/PSR
PT1
-
PT0
-
00[1]
x0000000



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