參數(shù)資料
型號： AT89C51SND2C-7FTUL
廠商： Atmel
文件頁數(shù)： 49/160頁
文件大?。?/td> 0K
描述： IC 8051 MCU FLASH 64K MP3 100BGA
標準包裝： 260
系列： 89C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： I²C，IDE/ATAPI，MMC，SPI，UART/USART，USB
外圍設備： 音頻，I²S，MP3，PCM，POR，WDT
輸入/輸出數(shù)： 32
程序存儲器容量： 64KB（64K x 8）
程序存儲器類型： 閃存
RAM 容量： 2.25K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 3.3 V
振蕩器型： 內部
工作溫度： -40°C ~ 85°C
封裝/外殼： 100-TFBGA
包裝： 托盤
其它名稱： AT89C51SND2C7FTUL
6-14
DS785UM1
Copyright 2007 Cirrus Logic
Vectored Interrupt Controller
EP93xx User’s Guide
6
Definition:
Protection Enable Register. The VICxProtection register enables or disables
protected register access. If the bus master cannot generate accurate
protection information, leave this register in its reset state to allow User mode
access.
Bit Descriptions:
RSVD:
Reserved. Unknown During Read.
Protection:
Enables or disables protected register access. When
enabled, only Privileged mode accesses (reads and
writes) can access the interrupt controller registers. When
disabled, both User mode and Privileged mode can
access the registers. This bit is cleared to ‘0’ on reset, and
can only be accessed in Privileged mode.
VICxVectAddr
Address:
VIC1VectAddr: 0x800B_0030 - Read/Write
VIC2VectAddr: 0x800C_0030 - Read/Write
Definition:
Vector Address Register. The VICxVectAddr register contains the Interrupt
Service Routine (ISR) address of the currently active interrupt.
Note: Reading from this register provides the address of the ISR, and indicates to the priority
hardware that the interrupt is being serviced. Writing to this register indicates to the
priority hardware that the interrupt has been serviced. The register should be used as
follows:
The ISR reads the VICxVectAddr register when an IRQ interrupt is generated
At the end of the ISR, the VICxVectAddr register is written with any value in order to
update the priority hardware.
Reading or writing to the register at other times can cause incorrect operation.
Note: If you are using the VIC and a program/debugger ever reads address VIC_BASE + 0x30,
a value must be written to VIC_BASE + 0x30. If not, only higher priority interrupts are
enabled and there are no higher priority interrupts. Therefore, no more interrupts will
occur. If you use the VIC in Vectored Interrupt mode, this is not an issue.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
VectorAddr
15
14
13
12
11
10
987654
321
0
VectorAddr
相關PDF資料
PDF描述
AT89C52-24PI IC MICRO CTRL 24MHZ 40DIP
AT89C55WD-24AU IC 8051 MCU FLASH 20K 44TQFP
AT89EB5114-TGSIL IC 8051 MCU FLASH 4K 20SOIC
AT89LP214-20PU MCU 8051 2K FLASH 20MHZ 14-PDIP
AT89LP216-20SU MCU 8051 2K FLASH 20MHZ 16-SOIC
相關代理商/技術參數(shù)
參數(shù)描述
AT89C51-W 功能描述:8位微控制器 -MCU Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) 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
AT89C52 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 8K Bytes Flash
AT89C52_00 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes Flash
AT89C52_99 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes Flash
AT89C52-12AA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 8K Bytes Flash
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*