參數資料
型號： P89V51RB2
廠商： NXP Semiconductors N.V.
英文描述： 8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
中文描述： 8位80C51的5 V低功耗16/32/64 kB閃存1 KB RAM內存控制器
文件頁數： 44/77頁
文件大?。?/td> 350K
代理商： P89V51RB2
Philips Semiconductors
P89V51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
Product data
Rev. 03 — 02 December 2004
44 of 77
9397 750 14341
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
7.7 Watchdog timer
The device offers a programmable Watchdog Timer (WDT) for fail safe protection
against software deadlock and automatic recovery.
Table 33:
Bit addressable; Reset source(s): any reset; Reset value: 00000000B
Bit
7
6
Symbol
SPIF
WCOL
SPSR - SPI status register (address AAH) bit allocation
5
-
4
-
3
-
2
-
1
-
0
-
Table 34:
Bit
7
SPSR - SPI status register (address AAH) bit description
Symbol
Description
SPIF
SPI interrupt flag. Upon completion of data transfer, this bit is set to
‘1’. If SPIE = 1 and ES = 1, an interrupt is then generated. This bit
is cleared by software.
WCOL
Write Collision Flag. Set if the SPI data register is written to during
data transfer.
This bit is cleared by software.
-
Reserved for future use. Should be set to
‘0’
by user programs.
6
5 to 0
Fig 18. SPI transfer format with CPHA = 0.
002aaa529
MSB
SCK Cycle #
(for reference)
SCK (CPOL=0)
SCK (CPOL=1)
MOSI
(from Master)
MISO
(from Slave)
SS (to Slave)
6
1
2
3
4
5
6
7
8
5
MSB
6
5
4
3
2
1
LSB
4
3
2
1
LSB
Fig 19. SPI transfer format with CPHA = 1.
002aaa530
MSB
SCK Cycle #
(for reference)
SCK (CPOL=0)
SCK (CPOL=1)
MOSI
(from Master)
MISO
(from Slave)
SS (to Slave)
6
1
2
3
4
5
6
7
8
5
MSB
6
5
4
3
2
1
LSB
4
3
2
1
LSB
相關PDF資料
PDF描述
P89V51RB2BA 8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89V51RB2BBC 8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89V51RC2 8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89V51RC2BN 8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89V51RD2 8-bit 80C51 5 V low power 64 kB Flash microcontroller with 1 kB RAM
相關代理商/技術參數
參數描述
P89V51RB2_09 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 16/32/64 kB flash microcontroller with 1 kB RAM
P89V51RB2BA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 5 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM
P89V51RB2BBC 功能描述:8位微控制器 -MCU 16K/512 FL 12 CLK ISP/IAP COMM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P89V51RB2BBC,557 功能描述:8位微控制器 -MCU 16K/512 FL 12 CLK RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P89V51RB2FA 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 16K FLASH PLCC44
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