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| 型號(hào)： | PIC12CE674-10/P |
| 廠(chǎng)商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 70/129頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU OTP 2KX14 A/D&EE 8DIP |
| 產(chǎn)品培訓(xùn)模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 系列： | PIC® 12C |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 10MHz |
| 外圍設(shè)備： | POR，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲(chǔ)器容量： | 3.5KB（2K x 14） |
| 程序存儲(chǔ)器類(lèi)型： | OTP |
| EEPROM 大?。?/td> | 16 x 8 |
| RAM 容量： | 128 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 4x8b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 包裝： | 管件 |
| 配用： | ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC |
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1999 Microchip Technology Inc.
DS30561B-page 45
PIC12C67X
REGISTER 8-1:
ADCON0 REGISTER (ADDRESS 1Fh)
R/W-0
ADCS1 ADCS0 reserved
CHS1
CHS0
GO/DONE reserved
ADON
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
bit0
bit 7-6:
ADCS<1:0>: A/D Conversion Clock Select bits
00
= FOSC/2
01
= FOSC/8
10
= FOSC/32
11
= FRC (clock derived from an RC oscillation)
bit 5:
Reserved
bit 4-3: CHS<1:0>: Analog Channel Select bits
00
= channel 0, (GP0/AN0)
01
= channel 1, (GP1/AN1)
10
= channel 2, (GP2/AN2)
11
= channel 3, (GP4/AN3)
bit 2:
GO/DONE: A/D Conversion Status bit
If ADON = 1
1
= A/D conversion in progress (setting this bit starts the A/D conversion)
0
= A/D conversion not in progress (this bit is automatically cleared by hardware when the A/D conversion
is complete)
bit 1:
Reserved
bit 0:
ADON: A/D on bit
1
= A/D converter module is operating
0
= A/D converter module is shut off and consumes no operating current
8.0
ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
The Analog-To-Digital (A/D) converter module has four
analog inputs.
The A/D allows conversion of an analog input signal to
a corresponding 8-bit digital number (refer to Applica-
tion Note AN546 for use of A/D Converter). The output
of the sample and hold is the input into the converter,
which generates the result via successive approxima-
tion. The analog reference voltage is software select-
able to either the device’s positive supply voltage (VDD)
or the voltage level on the GP1/AN1/VREF pin. The A/D
converter has a unique feature of being able to operate
while the device is in SLEEP mode.
The A/D module has three registers. These registers
are:
A/D Result Register (ADRES)
A/D Control Register 0 (ADCON0)
A/D Control Register 1 (ADCON1)
The ADCON0 Register, shown in Figure 8-1, controls
the operation of the A/D module. The ADCON1 Regis-
ter, shown in Figure 8-2, configures the functions of the
port pins. The port pins can be configured as analog
inputs (GP1 can also be a voltage reference) or as dig-
ital I/O.
Note 1: If the port pins are configured as analog
inputs (reset condition), reading the port
(MOVF GPIO,W) results in reading '0's.
2: Changing ADCON1 Register can cause
the GPIF and INTF flags to be set in the
INTCON Register.
These interrupts
should be disabled prior to modifying
ADCON1.
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