参数资料
型号: T89C51AC2-SLSIM
厂商: Atmel
文件页数: 113/121页
文件大小: 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
标准包装: 27
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 34
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 1.25K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
数据转换器: A/D 8x10b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
91
A/T89C51AC2
4127H–8051–02/08
Registers
Table 63. ADCF Register
ADCF (S:F6h)
ADC Configuration
Reset Value = 0000 0000b
Table 64. ADCON Register
ADCON (S:F3h)
ADC Control Register
Reset Value = X000 0000b
7
6
5
4
3
2
1
0
CH 7
CH 6
CH 5
CH 4
CH 3
CH 2
CH 1
CH 0
Bit
Number
Bit
Mnemonic Description
7-0
CH 0:7
Channel Configuration
Set to use P1.x as ADC input.
Clear to use P1.x as standart I/O port.
7
6
5
4
3
2
1
0
-
PSIDLE
ADEN
ADEOC
ADSST
SCH2
SCH1
SCH0
Bit
Number
Bit
Mnemonic Description
7
-
6
PSIDLE
Pseudo Idle Mode (Best Precision)
Set to put in idle mode during conversion
Clear to convert without idle mode.
5
ADEN
Enable/Standby Mode
Set to enable ADC
Clear for Standby mode (power dissipation 1 uW).
4
ADEOC
End Of Conversion
Set by hardware when ADC result is ready to be read. This flag can generate an
interrupt.
Must be cleared by software.
3
ADSST
Start and Status
Set to start an A/D conversion.
Cleared by hardware after completion of the conversion
2-0
SCH2:0
Selection of Channel to Convert
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