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特殊功能寄存器映像 SFR Mapping
Bit
Addressable
Non Bit Addressable
0/8
1/9 2/A 3/B 4/C 5/D 6/E 7/F
F8h
CH CCAP0H CCAP1H CCAP2H CCAP3H
0000,0000 0000,0000 0000,0000 0000,0000 0000,0000
FFh
F0h
B
0000,0000
PCA_PWM0 PCA_PWM1 PCA_PWM2 PCA_PWM3
xxxx,xx00 xxxx,xx00 xxxx,xx00 xxxx,xx00
F7h
E8h
CL CCAP0L CCAP1L CCAP2L CCAP3L
0000,0000 0000,0000 0000,0000 0000,0000 0000,0000
EFh
E0h
ACC
0000,0000
WDT_CONTR
0x00,0000
ISP_DATA ISP_ADDRH
1111,1111 0000,0000
ISP_ADDRL
0000,0000
ISP_CMD ISP_TRIG ISP_CONTR
xxxx,xx00 xxxx,xxxx 0000,1000
E7h
D8h
CCON
00xx,0000
CMOD CCAPM0 CCAPM1 CCAPM2 CCAPM3
0xxx,x000 x000,0000 x000,0000 x000,0000 x000,0000
DFh
D0h
PSW
0000,0000
D7h
C8h
CFh
C0h
ADC_CONTR
0000,0000
ADC_DATA
0000,0000
CLK_DIV
xxxx,x000
C7h
B8h
IP
x000,0000
SADEN
don't use
ADC_LOW2
0000,0000
BFh
B0h
P3
1x11,1111
P3M0
P3M1
0000,0000 0000,0000
IPH
x000,0000
B7h
A8h
IE
0000,0000
SADDR
don't use
AFh
A0h
P2
1111,1111
TEST_WDT
don't use
A7h
98h
SCON SBUF
0000,0000 xxxx,xxxx
9Fh
90h
P1 P1M0 P1M1
P0M0
P0M1
P2M0 P2M1
1111,1111 0000,0000 0000,0000 0000,0000 0000,0000 0000,0000 0000,0000
97h
88h
TCON TMOD TL0 TL1 TH0
0000,0000 0000,0000 0000,0000 0000,0000 0000,0000
TH1 AUXR
0000,0000 0000,00xx
8Fh
80h
P0
xxxx,1111
SP DPL DPH SPSTAT
0000,0111 0000,0000 0000,0000 00xx,xxxx
SPCTL
0000,0100
SPDAT
0000,0000
PCON
0011,0000
87h
0/8 1/9 2/A 3/B 4/C 5/D 6/E 7/F
特别标出部分为在 I n t e l 8 0 5 2 基础上新增加的特殊功能寄存器, 一般用户可不管
宏晶科技:专业单片机 / 存储器供应商 www.MCU-Memory.com STC12C5410AD 系列 1T 8051 单片机中文指南 19