參數資料
型號: AT89C51SND2C-7FTUL
廠商: Atmel
文件頁數: 36/160頁
文件大小: 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: 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
6-2
DS785UM1
Copyright 2007 Cirrus Logic
Vectored Interrupt Controller
EP93xx User’s Guide
6
Figure 6-1. Vectored Interrupt Controller Block Diagram
6.1.1 Interrupt Priority
A FIQ interrupt has the highest priority (because the ARM9 core will always treat FIQ as
higher priority), followed by vectored interrupt 0 to vectored interrupt 15. Non-vectored IRQ
interrupts have the lowest priority. Any of the non-vectored Interrupts can be either FIQ or
IRQ (the interrupt type is determined by programming the appropriate register,
Vector Address and Priority
Logic
Vector Address and
Priority Logic
VIC Daisy Chain
VICINTSOURCE[63:32]
IRQ from VIC1
Vector Addr from VIC1
VICINTSOURCE[31:0]
IRQ
VIC1
VIC0
FIQ from VIC1
ARM920T
FIQ
2
1
2
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