参数资料
型号: AT89C51SND2C-7FTUL
厂商: Atmel
文件页数: 50/160页
文件大小: 0K
描述: IC 8051 MCU FLASH 64K MP3 100BGA
标准包装: 260
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: I²C,IDE/ATAPI,MMC,SPI,UART/USART,USB
外围设备: 音频,I²S,MP3,PCM,POR,WDT
输入/输出数: 32
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.3 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 100-TFBGA
包装: 托盘
其它名称: AT89C51SND2C7FTUL
DS785UM1
6-15
Copyright 2007 Cirrus Logic
Vectored Interrupt Controller
EP93xx User’s Guide
6
If you are not using the priority level in the VIC, write the VICxVectAddr
register with any value (in order to disable the interrupt priority) at the
beginning of your program.
It is not always clear when the ARM debuggers read the VICxVectAddr
register, so it is recommended that if you are using a debugger, do not read
the VIC registers via a memory window. If you must read the VIC registers,
read only the VIC registers that are needed.
Bit Descriptions:
VectorAddr:
Contains the address of the currently active ISR. Any
writes to this register clear the interrupt.
VICxDefVectAddr
Address:
VIC1DefVectAddr: 0x800B_0034 - Read/Write
VIC2DefVectAddr: 0x800C_0034 - Read/Write
Definition:
Default Vector Address Register. The VICxDefVectAddr register contains the
default ISR address.
Bit Descriptions:
DefaultVectorAddr: Contains the address of the default ISR handler.
VICxVectAddr0
VICxVectAddr1,
VICxVectAddr2,
VICxVectAddr3,
VICxVectAddr4,
VICxVectAddr5,
VICxVectAddr6
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
DefaultVectorAddr
15
14
13
12
11
10
987654
3210
DefaultVectorAddr
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