參數(shù)資料
型號: PIC18F8393-I/PT
廠商: Microchip Technology
文件頁數(shù): 25/41頁
文件大?。?/td> 0K
描述: IC PIC MCU FLASH 4KX16 80TQFP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝: 119
系列: PIC® 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 40MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,HLVD,LCD,POR,PWM,WDT
輸入/輸出數(shù): 66
程序存儲器容量: 8KB(4K x 16)
程序存儲器類型: 閃存
RAM 容量: 768 x 8
電壓 - 電源 (Vcc/Vdd): 4.2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 12x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-TQFP
包裝: 托盤
產(chǎn)品目錄頁面: 642 (CN2011-ZH PDF)
配用: XLT80PT3-ND - SOCKET TRAN ICE 80MQFP/TQFP
2010 Microchip Technology Inc.
DS39896C-page 31
PIC18F6393/6493/8393/8493
2.0
12-BIT ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
The Analog-to-Digital (A/D) Converter module converts
an analog input signal to a 12-bit digital number. The
module has 12 inputs for both PIC18F6393/6493 (64-pin)
and PIC18F8393/8493 (80-pin) devices.
The module has five registers:
A/D Result High Register (ADRESH)
A/D Result Low Register (ADRESL)
A/D Control Register 0 (ADCON0)
A/D Control Register 1 (ADCON1)
A/D Control Register 2 (ADCON2)
The ADCON0 register, shown in Register 2-1, controls
the operation of the A/D module. The ADCON1
register, shown in Register 2-2, configures the
functions of the port pins. The ADCON2 register,
shown in Register 2-3, configures the A/D clock
source, programmed acquisition time and justification.
REGISTER 2-1:
ADCON0: A/D CONTROL REGISTER 0
U-0
R/W-0
CHS3
CHS2
CHS1
CHS0
GO/DONE
ADON
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
Unimplemented: Read as ‘0’
bit 5-2
CHS<3:0>: Analog Channel Select bits
0000
= Channel 0 (AN0)
0001
= Channel 1 (AN1)
0010
= Channel 2 (AN2)
0011
= Channel 3 (AN3)
0100
= Channel 4 (AN4)
0101
= Channel 5 (AN5)
0110
= Channel 6 (AN6)
0111
= Channel 7 (AN7)
1000
= Channel 8 (AN8)
1001
= Channel 9 (AN9)
1010
= Channel 10 (AN10)
1011
= Channel 11 (AN11)
1100
= Unimplemented(1)
1101
= Unimplemented(1)
1110
= Unimplemented(1)
1111
= Unimplemented(1)
bit 1
GO/DONE: A/D Conversion Status bit
When ADON = 1:
1
= A/D conversion in progress
0
= A/D Idle
bit 0
ADON: A/D On bit
1
= A/D Converter module is enabled
0
= A/D Converter module is disabled
Note 1:
Performing a conversion on unimplemented channels will return a floating input measurement.
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