参数资料
型号: AT89C51SND2C-7FTUL
厂商: Atmel
文件页数: 47/160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
6-12
DS785UM1
Copyright 2007 Cirrus Logic
Vectored Interrupt Controller
EP93xx User’s Guide
6
Definition:
Interrupt Enable Register. The VICxIntEnable register enables the interrupt
requests by unmasking the interrupt sources. On reset, all interrupts are
disabled (masked).
Bit Descriptions:
IntEnable:
Enables the interrupt request lines:
1 - Interrupt enabled. Allows interrupt request to ARM
Core.
0 - Interrupt disabled.
VICxIntEnClear
Address:
VIC1IntEnClear: 0x800B_0014 - Write Only
VIC2IntEnClear: 0x800C_0014 - Write Only
Default: Don’t Care
Definition:
Interrupt Enable Clear Register. The VICxIntEnClear register clears bits in the
VICxIntEnable register.
Bit Descriptions:
IntEnable Clear:
Clears bits in the VICxIntEnable register. Writing a bit to
“1” clears the corresponding bit in the VICxIntEnable
register. Any bits written to “0” have no effect.
VICxSoftInt
Address:
VIC1SoftInt: 0x800B_0018 - Read/Write
VIC2SoftInt: 0x800C_0018 - Read/Write
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
IntEnable Clear
15
14
13
12
11
10
987654
3210
IntEnable Clear
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SoftInt
15
14
13
12
11
10
987654
3210
SoftInt
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