参数资料
型号: AT89C51ED2-SMRUM
厂商: Atmel
文件页数: 104/137页
文件大小: 0K
描述: IC MCU FLASH 8051 64K 5V 68PLCC
产品培训模块: MCU Product Line Introduction
标准包装: 1
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 60MHz
连通性: SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 50
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 68-PLCC
包装: 标准包装
其它名称: AT89C51ED2-SMRUMDKR
69
4235K–8051–05/08
AT89C51RD2/ED2
Serial Peripheral data transfer flag, SPIF: This bit is set by hardware when a transfer has been
completed. SPIF bit generates transmitter CPU interrupt requests.
Mode Fault flag, MODF: This bit becomes set to indicate that the level on the SS is inconsistent
with the mode of the SPI. MODF with SSDIS reset, generates receiver/error CPU interrupt
requests. When SSDIS is set, no MODF interrupt request is generated.
Figure 16-7 gives a logical view of the above statements.
Figure 16-7. SPI Interrupt Requests Generation
16.3.5
Registers
There are three registers in the Module that provide control, status and data storage functions. These registers are
describes in the following paragraphs.
16.3.5.1
Serial Peripheral Control Register (SPCON)
The Serial Peripheral Control Register does the following:
Selects one of the Master clock rates
Configure the SPI Module as Master or Slave
Selects serial clock polarity and phase
Enables the SPI Module
Frees the SS pin for a general-purpose
Table 16-3 describes this register and explains the use of each bit
Table 16-3.
SPCON Register
SPCON - Serial Peripheral Control Register (0C3H)
SSDIS
MODF
CPU Interrupt Request
SPI Receiver/error
CPU Interrupt Request
SPI Transmitter
SPI
CPU Interrupt Request
SPIF
7
6
5
4
3
2
1
0
SPR2
SPEN
SSDIS
MSTR
CPOL
CPHA
SPR1
SPR0
Bit Number
Bit Mnemonic
Description
7
SPR2
Serial Peripheral Rate 2
Bit with SPR1 and SPR0 define the clock rate.
6
SPEN
Serial Peripheral Enable
Cleared to disable the SPI interface.
Set to enable the SPI interface.
5
SSDIS
SS Disable
Cleared to enable SS in both Master and Slave modes.
Set to disable SS in both Master and Slave modes. In Slave mode, this bit
has no effect if CPHA =’0’. When SSDIS is set, no MODF interrupt request
is generated
.
相关PDF资料
PDF描述
AT89C51IC2-RLRUM IC 8051 MCU 32K FLASH 44-VQFP
AT89C51ID2-RLRIM IC MCU FLASH 8051 64K 5V 44-VQFP
AT89C51RC-24PU IC MCU 32K FLASH 24MHZ 40-DIP
AT89C51RC2-RLRIL IC MCU FLASH 8051 32K 3V 44-VQFP
AT89C51RE2-SLRUM MCU 8051 128K FLASH 44-PLCC
相关代理商/技术参数
参数描述
AT89C51ED2-SMSIM 制造商:Atmel Corporation 功能描述:MCU 8-bit AT89 80C51 CISC 64KB Flash 3.3V/5V 68-Pin PLCC Stick 制造商:Atmel/Adesto Technologies 功能描述:Bulk 制造商:Atmel Corporation 功能描述:AT89C51ED2-SMSIM 8bit microcontroller
AT89C51ED2-SMSUM 功能描述:8位微控制器 -MCU C51ED2 64K FLASH 3-5.5V Ind 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
AT89C51ED2-UM 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Flash Microcontroller
AT89C51IC2 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Flash Microcontroller with 2-wire Interface
AT89C51IC2_04 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-bit Flash Microcontroller with 2-wire Interface