参数资料
型号: P89V51RB2BBC,557
厂商: NXP Semiconductors
文件页数: 18/80页
文件大小: 0K
描述: IC 80C51 MCU 1024 RAM 44TQFP
产品培训模块: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
标准包装: 800
系列: 89V
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 16KB(16K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 44-TQFP
包装: 托盘
配用: 622-1017-ND - BOARD 44-ZIF PLCC SOCKET
其它名称: 935277723557
P89V51RB2BBC
P89V51RB2BBC-ND
P89V51RB2_RC2_RD2_5
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 12 November 2009
25 of 80
NXP Semiconductors
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
6.3.5 Using the serial number
This device has the option of storing a 31 B serial number along with the length of the
serial number (for a total of 32 B) in a non-volatile memory space. When ISP mode is
entered, the serial number length is evaluated to determine if the serial number is in use.
If the length of the serial number is programmed to either 00H or FFH, the serial number is
considered not in use. If the serial number is in use, reading, programming, or erasing of
the user code memory or the serial number is blocked until the user transmits a ‘verify
serial number’ record containing a serial number and length that matches the serial
number and length previously stored in the device. The user can reset the serial number
to all zeros and set the length to zero by sending the ‘reset serial number' record. In
addition, the ‘reset serial number’ record will also erase all user code.
6.3.6 IAP method
Several IAP calls are available for use by an application program to permit selective
erasing, reading and programming of ash sectors, security bit, conguration bytes, and
device id. All calls are made through a common interface, PGM_MTP. The programming
functions are selected by setting up the microcontroller’s registers before making a call to
PGM_MTP at 1FF0H. The IAP calls are shown in Table 13.
09
Write serial number
:nnxxxx09ss..sscc
Where:
xxxxxx = required eld but value is a ‘don’t care’
09 = write serial number function
ss..ss = serial number contents
cc = checksum
Example:
:03000009010203EE (write s/n = 010203)
0A
Display serial number
:xxxxxx0Acc
Where:
xxxxxx = required eld but value is a ‘don’t care’
0A = display serial number function
cc = checksum
Example:
:0000000AF6
0B
Reset and run user code
:xxxxxx0Bcc
Where:
xxxxxx = required eld but value is a ‘don’t care’
0B = Reset and run user code
cc = checksum
Example:
:0000000BF5
Table 12.
ISP hex record formats …continued
Record type
Command/data function
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