參數(shù)資料
型號: P89V51RD2
廠商: NXP Semiconductors N.V.
英文描述: 8-bit 80C51 5 V low power 64 kB Flash microcontroller with 1 kB RAM
中文描述: 8位80C51的5 V低功耗64 kB閃存1 KB RAM內(nèi)存控制器
文件頁數(shù): 11/77頁
文件大小: 350K
代理商: P89V51RD2
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Special function registers
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
MSB
Bit address
E7
E6
ACC*
Accumulator
E0H
AUXR
Auxiliary function register
8EH
-
-
AUXR1
Auxiliary function register 1
A2H
-
-
Bit address
F7
F6
B*
B register
F0H
CCAP0H
Module 0 Capture HIGH
FAH
CCAP1H
Module 1 Capture HIGH
FBH
CCAP2H
Module 2 Capture HIGH
FCH
CCAP3H
Module 3 Capture HIGH
FDH
CCAP4H
Module 4 Capture HIGH
FEH
CCAP0L
Module 0 Capture LOW
EAH
CCAP1L
Module 1 Capture LOW
EBH
CCAP2L
Module 2 Capture LOW
ECH
CCAP3L
Module 3 Capture LOW
EDH
CCAP4L
Module 4 Capture LOW
EEH
CCAPM0
Module 0 Mode
DAH
-
ECOM_0
CCAPM1
Module 1 Mode
DBH
-
ECOM_1
CCAPM2
Module 2 Mode
DCH
-
ECOM_2
CCAPM3
Module 3 Mode
DDH
-
ECOM_3
CCAPM4
Module 4 Mode
DEH
-
ECOM_4
Bit address
DF
DE
CCON*
PCA Counter Control
D8H
CF
CR
CH
PCA Counter HIGH
F9H
CL
PCA Counter LOW
E9H
CMOD
PCA Counter Mode
D9H
CIDL
WDTE
DPTR
Data Pointer (2 bytes)
DPH
Data Pointer HIGH
83H
DPL
Data Pointer LOW
82H
P
P
8
9
P
R
1
Table 4:
Bit functions and addresses
LSB
E0
E5
E4
E3
E2
E1
-
-
-
-
-
0
EXTRAM
-
F1
AO
DPS
F0
GF2
F3
F5
F4
F2
CAPP_0
CAPP_1
CAPP_2
CAPP_3
CAPP_4
DD
-
CAPN_0
CAPN_1
CAPN_2
CAPN_3
CAPN_4
DC
CCF4
MAT_0
MAT_1
MAT_2
MAT_3
MAT_4
DB
CCF3
TOG_0
TOG_1
TOG_2
TOG_3
TOG_4
DA
CCF2
PWM_0
PWM_1
PWM_2
PWM_3
PWM_4
D9
CCF1
ECCF_0
ECCF_1
ECCF_2
ECCF_3
ECCF_4
D8
CCF0
-
-
-
CPS1
CPS0
ECF
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