参数资料
型号: P89V51RB2FA,529
厂商: NXP Semiconductors
文件页数: 76/80页
文件大小: 0K
描述: IC 80C51 MCU FLASH 16K 44-PLCC
产品培训模块: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
标准包装: 156
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: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
产品目录页面: 706 (CN2011-ZH PDF)
配用: 622-1017-ND - BOARD 44-ZIF PLCC SOCKET
622-1001-ND - USB IN-CIRCUIT PROG 80C51ISP
其它名称: 568-2427-5
935278706529
P89V51RB2FA-S
PIC18F87K22 FAMILY
DS39960D-page 78
2009-2011 Microchip Technology Inc.
5.7
Reset State of Registers
Most registers are unaffected by a Reset. Their status
is unknown on POR and unchanged by all other
Resets. The other registers are forced to a “Reset
state” depending on the type of Reset that occurred.
Most registers are not affected by a WDT wake-up,
since this is viewed as the resumption of normal
operation. Status bits from the RCON register (CM, RI,
TO, PD, POR and BOR) are set or cleared differently in
different Reset situations, as indicated in Table 5-1.
These bits are used in software to determine the nature
of the Reset.
Table 5-2 describes the Reset states for all of the
Special Function Registers. These are categorized by
Power-on and Brown-out Resets, Master Clear and
WDT Resets, and WDT wake-ups.
TABLE 5-1:
STATUS BITS, THEIR SIGNIFICANCE AND THE INITIALIZATION CONDITION FOR
RCON REGISTER
Condition
Program
Counter(1)
RCON Register
STKPTR Register
CM
RI
TO
PD
POR
BOR
STKFUL
STKUNF
Power-on Reset
0000h
11
0
RESET
instruction
0000h
u0
uu
u
Brown-out Reset
0000h
11
u
0
u
Configuration Mismatch Reset
0000h
0u
uu
u
MCLR Reset during
power-managed Run modes
0000h
uu
1u
u
MCLR Reset during power-
managed Idle modes and
Sleep mode
0000h
uu
10
u
MCLR Reset during full-power
execution
0000h
uu
u
Stack Full Reset (STVREN = 1)
0000h
uu
u
1
u
Stack Underflow Reset
(STVREN = 1)
0000h
uu
u
1
Stack Underflow Error (not an
actual Reset, STVREN = 0)
0000h
uu
u
1
WDT time-out during full-power
or power-managed Run modes
0000h
uu
0u
u
WDT time-out during
power-managed Idle or Sleep
modes
PC + 2
uu
00
u
Interrupt exit from
power-managed modes
PC + 2
uu
u0
u
Legend: u
= unchanged
Note 1:
When the wake-up is due to an interrupt and the GIEH or GIEL bit is set, the PC is loaded with the interrupt
vector (0008h or 0018h).
相关PDF资料
PDF描述
P89V660FA,512 IC 80C51 MCU FLASH 16K 44-PLCC
P89V660FBC,557 IC 80C51 MCU FLASH 16K 44-TQFP
P89V662FBC,557 IC 80C51 MCU FLASH 32K 44-TQFP
PIC32MX130F064B-I/SO IC MCU 32BIT 64KB FLASH 28-SOIC
PIC32MX220F032D-I/ML IC MCU 32BIT 32KB FLASH 44QFN
相关代理商/技术参数
参数描述
P89V51RB2FN 制造商:NXP Semiconductors 功能描述:IC MCU 8BIT 80C51 16K FLASH DIP40 制造商:NXP Semiconductors 功能描述:IC, MCU 8BIT 80C51 16K FLASH, DIP40
P89V51RB2FN,112 功能描述:8位微控制器 -MCU 80C51 16K FL / 512 R 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
P89V51RB2FN112 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 40MHZ DIP-40
P89V51RC2 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89V51RC2BN 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM