参数资料
型号: AT89LP213-20PU
厂商: Atmel
文件页数: 61/98页
文件大小: 0K
描述: MCU 8051 2K FLASH 20MHZ 14-PDIP
产品培训模块: MCU Product Line Introduction
标准包装: 25
系列: 89LP
核心处理器: 8051
芯体尺寸: 8-位
速度: 20MHz
连通性: SPI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 12
程序存储器容量: 2KB(2K x 8)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.4 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 14-DIP(0.300",7.62mm)
包装: 管件
64
3538E–MICRO–11/10
AT89LP213/214
22. On-chip Debug System
The AT89LP213/214 On-chip Debug (OCD) System uses a two-wire serial interface to control
program flow; read, modify, and write the system state; and program the nonvolatile memory.
The OCD System has the following features:
Complete program flow control
Read-modify-write access to all internal SFRs and data memories
Four hardware program address breakpoints
Unlimited program software breakpoints using BREAK instruction
Break on stack overflow/underflow
Break on Watchdog overflow
Non-intrusive operation
Programming of nonvolatile memory
22.1
Physical Interface
The On-chip Debug System uses a two-wire synchronous serial interface to establish communi-
cation between the target device and the controlling emulator system. The OCD interface is
controlled by two User Fuses. OCD is enabled by clearing the OCD Enable Fuse. When OCD is
enabled, the RST port pin is configured as an input for the Debug Clock (DCL). Either the XTAL1
or XTAL2 pin is configured as a bi-directional data line for the Debug Data (DDA) depending on
the clock source selected. If the External Clock is selected, XTAL2 is configured as DDA. If the
Internal RC Oscillator is selected, XTAL1 is configured as DDA. The OCD device connections
are shown in Figure 22-1. The OCD Interface Select User Fuse should always be set for the fast
two-wire interface (FTWI). It is the duty of the user to program these fuses to the correct settings
before using the device in their debug system (see “User Configuration Fuses” on page 72).
Figure 22-1. AT89LP213/214 On-chip Debug Connections
When designing a system where On-chip Debug will be used, the following observations must
be considered for correct operation:
P1.3/RST cannot be connected directly to V
CC and any external capacitors connect to RST
must be removed.
All external reset sources must be removed.
The quartz crystal and any capacitors on XTAL1 or XTAL2 must be removed and an external
clock signal must be driven on XTAL1 if the user does not wish to use the internal RC
oscillator. Some emulator systems may provide a user-configurable clock for this purpose.
CLK = Internal RC
VCC
XTAL1
P1.3/RST
GND
DCL
DDA
CLK = External Clock
VCC
XTAL2
P1.3/RST
GND
DCL
DDA
XTAL1
CLK
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VE-B5X-IX-F4 CONVERTER MOD DC/DC 5.2V 75W
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AT89LP214-20XU MCU 8051 2K FLASH 20MHZ 14-TSSOP
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相关代理商/技术参数
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AT89LP213-20SU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.4-5.5V 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
AT89LP213-20XU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.4-5.5V 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
AT89LP214-16XI 功能描述:8位微控制器 -MCU Microcontroller 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
AT89LP214-20PU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.4-5.5V 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
AT89LP214-20SU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.4-5.5V 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