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Número de pieza | MA805-24 | |
Descripción | 8051 core - Microcontroller | |
Fabricantes | Megawin | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de MA805-24 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! 8051 内核-单片机
MA805-24/MA806-24
说明书
版本: A1.0
This document contains information on a new product under development by Megawin. Megawin reserves the right to change or
discontinue this product without notice.
Megawin Technology Co., Ltd. 2005 All rights reserved.
2014/02 version A1.0
1 page 目录
功能 ................................................................................................................... 3
目录 ................................................................................................................... 5
1. 概述 ............................................................................................................ 9
2. 方框图....................................................................................................... 10
3. 特殊功能寄存器(SFRs) .......................................................................... 11
3.1. SFR 映射图 .......................................................................................................... 11
3.2. SFR 位分配 .......................................................................................................... 12
4. 引脚 .......................................................................................................... 15
4.1. 引脚结构.............................................................................................................. 15
4.2. 引脚定义.............................................................................................................. 17
4.3. 引脚功能重映像 ................................................................................................... 20
5. 8051 CPU 功能描述 ................................................................................... 21
5.1. CPU 寄存器 .......................................................................................................... 21
5.2. CPU 时序.............................................................................................................. 22
5.3. CPU 寻址方式 ...................................................................................................... 22
6. 存储器....................................................................................................... 24
6.1. 片上程序存储器 ................................................................................................... 24
6.2. 片上数据存储器 ................................................................................................... 25
6.3. 片上扩展 RAM (XRAM) ........................................................................................... 29
6.4. 外部数据存储器的存取 ........................................................................................ 30
6.4.1. 8 位 MOVX 复用模式 .....................................................................................................31
6.4.2. 16 位 MOVX 复用模式....................................................................................................32
6.4.3. MOVX 无地址状态模式...................................................................................................33
6.5. 关于 C51 编译器的声明标识符 ............................................................................. 34
7. 双数据指针寄存器 (DPTR)......................................................................... 35
8. I/O 口........................................................................................................ 35
8.1. I/O 口结构 ........................................................................................................... 36
8.1.1. 准双向口 .....................................................................................................................36
8.1.2. 推挽输出 .....................................................................................................................37
8.1.3. 仅输入模式 (高阻抗输入)...........................................................................................37
8.1.4. 开漏输出 .....................................................................................................................37
8.2. I/O 口寄存器 ...................................................................................................... 38
8.2.1. 端口 0 寄存器 ..............................................................................................................39
8.2.2. 端口 1 寄存器 ..............................................................................................................39
8.2.3. 端口 2 寄存器 ..............................................................................................................40
8.2.4. 端口 3 寄存器 ..............................................................................................................40
8.2.5. 端口 4 寄存器 ..............................................................................................................41
8.2.6. 端口 5 寄存器 ..............................................................................................................41
8.2.7. 端口 6 寄存器 ..............................................................................................................42
8.3. GPIO 示例代码 ................................................................................................... 43
9. 中断 .......................................................................................................... 45
MEGAWIN
MA805-24_MA806-24 说明书
5
5 Page 3. 特殊功能寄存器(SFRs)
3.1. SFR 映射图
页
F8
0
F
F0
0
F
E8
0
F
E0
0
F
D8
0
F
D0
0
F
0/8
P5
B
P4
ACC
CCON
PSW
C8 0
F
C0
0
F
B8
0
F
B0
0
F
A8
0
F
A0
0
F
98
0
1
90
0
F
88
0
F
80
0
F
T2CON
P6
XICON
IP0L
P3
IE
P2
SCON0
SCON1
P1
TCON
P0
0/8
1/9
CH
--
CL
WDTCR
CMOD
--
T2MOD
--
SADEN
P3M0
SADDR
--
SBUF0
SBUF1
P1M0
TMOD
SP
1/9
2/A
CCAP0H
PCAPWM0
CCAP0L
IFD
CCAPM0
--
RCAP2L
--
--
P3M1
--
AUXR1
SCFG
S1BRT
P1M1
TL0
DPL
2/A
3/B
CCAP1H
PCAPWM1
CCAP1L
IFADRH
CCAPM1
--
RCAP2H
--
--
P4M0
--
--
--
P0M0
TL1
DPH
3/B
4/C
CCAP2H
PCAPWM2
CCAP2L
IFADRL
CCAPM2
--
TL2
--
--
P4M1
SFRPI
--
--
P0M1
TH0
SPSTAT
4/C
5/D
CCAP3H
PCAPWM3
CCAP3L
IFMT
CCAPM3
KBPATN
TH2
ADCON
--
P5M0
EIE1
--
--
P2M0
TH1
SPCON
5/D
6/E
CCAP4H
PCAPWM4
CCAP4L
SCMD
CCAPM4
KBCON
--
ADCV
ADCVL
P5M1
EIP1L
AUXR2
--
P2M1
AUXR0
SPDAT
6/E
7/F
CCAP5H
PCAPWM5
CCAP5L
ISPCR
CCAPM5
KBMASK
--
PCON2
--
IP0H
EIP1H
--
--
PCON1
STRETCH
PCON0
7/F
MEGAWIN
MA805-24_MA806-24 说明书
11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet MA805-24.PDF ] |
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