參數資料
型號: T89C51AC2-SLSIM
廠商: Atmel
文件頁數: 113/121頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
標準包裝: 27
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: UART/USART
外圍設備: POR,PWM,WDT
輸入/輸出數: 34
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數據轉換器: A/D 8x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 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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