参数资料
型号: EP7311-CB
厂商: Cirrus Logic Inc
文件页数: 37/42页
文件大小: 0K
描述: IC ARM720T MCU 74MHZ 256-PBGA
标准包装: 90
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 74MHz
连通性: 编解码器,EBI/EMI,IrDA,键盘,多媒体编解码器,SPI/Microwire1,UART/USART
外围设备: LCD,LED,MaverickKey,PWM
输入/输出数: 27
程序存储器类型: ROMless
RAM 容量: 56K x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 2.7 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 256-BGA
包装: 托盘
其它名称: 598-1220
42
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Table 9-5.
IEN1 Register
IEN1 (S:B1h) – Interrupt Enable Register 1
Reset Value = 0000 0000b
7
6
5
4
3
2
1
0
-
EUSB
-
EKB
-
ESPI
EI2C
EMMC
Bit Number
Bit
Mnemonic
Description
7
-
Reserved
The value read from this bit is always 0. Do not set this bit.
6
EUSB
USB Interface Interrupt Enable Bit
Set this bit to enable USB interrupts.
Clear this bit to disable USB interrupts.
5
-
Reserved
The value read from this bit is always 0. Do not set this bit.
4
EKB
Keyboard Interface Interrupt Enable Bit
Set to enable Keyboard interrupt.
Clear to disable Keyboard interrupt.
3
EADC
A to D Converter Interrupt Enable Bit
Set to enable ADC interrupt.
Clear to disable ADC interrupt.
2
ESPI
SPI Controller Interrupt Enable Bit
Set to enable SPI interrupt.
Clear to disable SPI interrupt.
1
EI2C
Two Wire Controller Interrupt Enable Bit
Set to enable Two Wire interrupt.
Clear to disable Two Wire interrupt.
0
EMMC
MMC Interface Interrupt Enable Bit
Set to enable MMC interrupt.
Clear to disable MMC interrupt.
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