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| 型号： | C8051F002R |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 137/171页 |
| 文件大小： | 0K |
| 描述： | IC 8051 MCU 32K FLASH 32LQFP |
| 标准包装： | 1 |
| 系列： | C8051F00x |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 20MHz |
| 连通性： | SMBus（2 线/I²C），SPI，UART/USART |
| 外围设备： | 欠压检测/复位，POR，PWM，温度传感器，WDT |
| 输入/输出数： | 8 |
| 程序存储器容量： | 32KB（32K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 256 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 数据转换器： | A/D 4x12b; D/A 2x12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-LQFP |
| 包装： | 剪切带 (CT) |
| 其它名称： | 336-1002-1 |
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C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
10.2.
MEMORY ORGANIZATION
The memory organization of the CIP-51 System Controller is similar to that of a standard 8051. There are two
separate memory spaces: program memory and data memory. Program and data memory share the same address
space but are accessed via different instruction types. There are 256 bytes of internal data memory and 64K bytes of
internal program memory address space implemented within the CIP-51. The CIP-51 memory organization is
shown in Figure 10.2.
10.2.1. Program Memory
The CIP-51 has a 64K-byte program memory space. The MCU implements 32896 bytes of this program memory
space as in-system, reprogrammable Flash memory, organized in a contiguous block from addresses 0x0000 to
0x807F. Note: 512 bytes (0x7E00 – 0x7FFF) of this memory are reserved for factory use and are not available for
user program storage.
Program memory is normally assumed to be read-only. However, the CIP-51 can write to program memory by
setting the Program Store Write Enable bit (PSCTL.0) and using the MOVX instruction. This feature provides a
mechanism for the CIP-51 to update program code and use the program memory space for non-volatile data storage.
Refer to Section 11 (Flash Memory) for further details.
10.2.2. Data Memory
The CIP-51 implements 256 bytes of internal RAM mapped into the data memory space from 0x00 through 0xFF.
The lower 128 bytes of data memory are used for general purpose registers and scratch pad memory. Either direct
or indirect addressing may be used to access the lower 128 bytes of data memory. Locations 0x00 through 0x1F are
addressable as four banks of general purpose registers, each bank consisting of eight byte-wide registers. The next
16 bytes, locations 0x20 through 0x2F, may be addressed as bytes or as 128 bit locations accessible with the direct-
bit addressing mode.
The upper 128 bytes of data memory are accessible only by indirect addressing. This region occupies the same
address space as the Special Function Registers (SFR) but is physically separate from the SFR space.
The
addressing mode used by an instruction when accessing locations above 0x7F determines whether the CPU accesses
the upper 128 bytes of data memory space or the SFRs. Instructions that use direct addressing will access the SFR
space. Instructions using indirect addressing above 0x7F will access the upper 128 bytes of data memory. Figure
10.2 illustrates the data memory organization of the CIP-51.
The C8051F005/06/07/15/16/17 also have 2048 bytes of RAM in the external data memory space of the CIP-51,
accessible using the MOVX instruction. Refer to Section 12 (External RAM) for details.
10.2.3. General Purpose Registers
The lower 32 bytes of data memory, locations 0x00 through 0x1F, may be addressed as four banks of general-
purpose registers. Each bank consists of eight byte-wide registers designated R0 through R7. Only one of these
banks may be enabled at a time. Two bits in the program status word, RS0 (PSW.3) and RS1 (PSW.4), select the
active register bank (see description of the PSW in Figure 10.6). This allows fast context switching when entering
subroutines and interrupt service routines. Indirect addressing modes use registers R0 and R1 as index registers.
10.2.4. Bit Addressable Locations
In addition to direct access to data memory organized as bytes, the sixteen data memory locations at 0x20 through
0x2F are also accessible as 128 individually addressable bits. Each bit has a bit address from 0x00 to 0x7F. Bit 0
of the byte at 0x20 has bit address 0x00 while bit 7 of the byte at 0x20 has bit address 0x07. Bit 7 of the byte at
0x2F has bit address 0x7F. A bit access is distinguished from a full byte access by the type of instruction used (bit
source or destination operands as opposed to a byte source or destination).
The MCS-51 assembly language allows an alternate notation for bit addressing of the form XX.B where XX is the
byte address and B is the bit position within the byte. For example, the instruction:
MOV
C, 22h.3
moves the Boolean value at 0x13 (bit 3 of the byte at location 0x22) into the user Carry flag.
Rev. 1.7
68
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相关代理商/技术参数 |
参数描述 |
|---|---|
| C8051F005 | 功能描述:8位微控制器 -MCU 32KB 12ADC RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| C8051F005/0046 | 制造商:Silicon Laboratories Inc 功能描述: |
| C8051F005DK | 功能描述:开发板和工具包 - 8051 MCU DEVELOPMENT KIT W/ US POWER SUPPLY RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| C8051F005DK-A | 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| C8051F005DK-B | 功能描述:DEV KIT FOR C8051F005/F006/F007 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
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