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P89V52X2FN データシート(PDF) 9 Page - NXP Semiconductors

部品番号 P89V52X2FN
部品情報  8-bit 80C51 low power 8 kB flash microcontroller with 256 B RAM, 192 B data EEPROM
PDF  56 Pages
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89V52X2FN データシート(HTML) 9 Page - NXP Semiconductors

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Table 3.
Special function registers
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
Bit functions and addresses
MSB
LSB
Bit address
E7E6E5
E4
E3
E2E1
E0
ACC*
Accumulator
E0H
AUXR
Auxiliary function register
8EH
---
----
AO
AUXR1
Auxiliary function register 1
A2H
-
-
-
GF2
0
-
DPS
Bit address
F7
F6F5F4F3
F2
F1F0
B*
B register
F0H
CKCON
B register
8FH
---
----
X2
DPTR
Data Pointer (2 B)
DPH
Data Pointer HIGH
83H
DPL
Data Pointer LOW
82H
Bit address
AF
AE
AD
AC
AB
AA
A9
A8
IE*
Interrupt Enable 0
A8H
EA
-
ET2
ES
ET1
EX1
ET0
EX0
Bit address
BF
BE
BD
BC
BB
BA
B9
B8
IP*
Interrupt Priority 0
B8H
-
-
PT2
PS
PT1
PX1
PT0
PX0
IPH
Interrupt Priority 0 HIGH
B7H
-
-
PT2H
PS0H
PT1H
PX1H
PT0H
PX0H
Bit address
878685
8483
8281
80
P0*
Port 0
80H
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
Bit address
979695
9493
9291
90
P1*
Port 1
90H
---
---
T2EX
T2
Bit address
A7
A6
A5A4A3
A2A1
A0
P2*
Port 2
A0H
AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8
Bit address
B7
B6
B5B4B3
B2B1
B0
P3*
Port 3
B0H
RD
WR
T1
T0
INT1
INT0
TXD
RXD
PCON
Power Control Register
87H
SMOD1
SMOD0
-
POF
GF1
GF0
PD
IDL
Bit address
D7
D6
D5D4D3
D2D1
D0
PSW*
Program Status Word
D0H
CY
AC
F0
RS1
RS0
OV
-
P
RCAP2H
Timer2 Capture HIGH
CBH
RCAP2L
Timer2 Capture LOW
CAH
Bit address
9F
9E
9D
9C
9B
9A
99
98



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