參數資料
型號: AT89C51SND2C-7FTUL
廠商: Atmel
文件頁數: 45/160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
6-10
DS785UM1
Copyright 2007 Cirrus Logic
Vectored Interrupt Controller
EP93xx User’s Guide
6
Definition:
IRQ Status Register. The VICxIRQStatus register provides the status of
interrupts after IRQ masking.
Interrupts 0 - 31 are in VIC1IRQStatus.
Interrupts 32 - 63 are in VIC2IRQStatus.
Bit Descriptions:
IRQStatus:
Shows the status of the interrupts after masking by the
VICxIntEnable and VICxIntSelect registers. A “1” indicates
that the interrupt is active, and generates an interrupt to
the ARM Core.
VICxFIQStatus
Address:
VIC1FIQStatus: 0x800B_0004 - Read Only
VIC2FIQStatus: 0x800C_0004 - Read Only
Definition:
FIQ Status Register. The VICxFIQStatus register provides the status of the
interrupts after FIQ masking.
Bit Descriptions:
FIQStatus:
Shows the status of the interrupts after masking by the
VICxIntEnable and VICxIntSelect registers. A “1” indicates
that the interrupt is active, and generates an interrupt to
the ARM Core.
VICxRawIntr
Address:
VIC1RawIntr: 0x800B_0008 - Read Only
VIC2RawIntr: 0x800C_0008 - Read Only
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
FIQStatus
15
14
13
12
11
10
987654
3210
FIQStatus
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RawIntr
15
14
13
12
11
10
987654
3210
RawIntr
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