参数资料
型号: EP7311-CB-90
厂商: Cirrus Logic Inc
文件页数: 16/42页
文件大小: 0K
描述: IC ARM720T MCU 90MHZ 256-PBGA
标准包装: 90
系列: EP7
核心处理器: ARM7
芯体尺寸: 32-位
速度: 90MHz
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: 598-1221
23
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Reset Value = XXUU UXXX, UUUU UUUU after an hardware full chip erase.
Note:
1. X2B initializes the X2 bit in CKCON during the reset phase.
2. In order to ensure boot loader activation at first power-up, AT89C51SND2C products are deliv-
ered with BLJB programmed.
3. Bits 0 to 3 (LSN) can only be programmed by hardware mode.
Reset Value = XXXX XXXX, UUUU UUUU after an hardware full chip erase.
Table 6-4.
SBV Byte – Software Boot Vector
7
6
5
4
3
2
1
0
ADD15
ADD14
ADD13
ADD12
ADD11
ADD10
ADD9
ADD8
Bit Number
Bit
Mnemonic
Description
7 - 0
ADD15:8
MSB of the user’s boot loader 16-bit address location
Refer to the boot loader datasheet for usage information (boot loader dependent)
Table 6-5.
SSB Byte – Software Security Byte
7
6
5
4
3
2
1
0
SSB7
SSB6
SSB5
SSB4
SSB3
SSB2
SSB1
SSB0
Bit Number
Bit
Mnemonic
Description
7 - 0
SSB7:0
Software Security Byte Data
Refer to the boot loader datasheet for usage information (boot loader dependent)
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