参数资料
型号: DSPIC30F3014-30I/PT
厂商: Microchip Technology
文件页数: 43/153页
文件大小: 0K
描述: IC DSPIC MCU/DSP 24K 44TQFP
产品培训模块: Serial Communications using dsPIC30F I2C
Serial Communications using dsPIC30F SPI
Serial Communications using dsPIC30F UART
dsPIC30F 12 bit ADC - Part 2
dsPIC30F Addressing Modes - Part 1
dsPIC30F Architecture - Part 1
dsPIC30F DSP Engine & ALU
dsPIC30F Interrupts
dsPIC30F Motor Control PWM
dsPIC Timers
Asynchronous Stimulus
dsPIC30F Addressing Modes - Part 2
dsPIC30F Architecture - Part 2
dsPIC30F 12-bit ADC Part 1
标准包装: 160
系列: dsPIC™ 30F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 30 MIP
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 30
程序存储器容量: 24KB(8K x 24)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.5 V ~ 5.5 V
数据转换器: A/D 13x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 托盘
产品目录页面: 651 (CN2011-ZH PDF)
配用: XLT80PT3-ND - SOCKET TRAN ICE 80MQFP/TQFP
AC164305-ND - MODULE SKT FOR PM3 44TQFP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名称: DSPIC30F301430IPT
2010 Microchip Technology Inc.
DS70138G-page 137
dsPIC30F3014/4013
19.9
Module Power-Down Modes
The module has two internal power modes.
When the ADON bit is ‘1’, the module is in Active mode;
it is fully powered and functional.
When ADON is ‘0’, the module is in Off mode. The
digital and analog portions of the circuit are disabled for
maximum current savings.
In order to return to the Active mode from Off mode, the
user must wait for the ADC circuitry to stabilize. The
time required to stabilize is specified in Section 23.0
19.10 A/D Operation During CPU Sleep
and Idle Modes
19.10.1
A/D OPERATION DURING CPU
SLEEP MODE
When the device enters Sleep mode, all clock sources
to the module are shut down and stay at logic ‘0’.
If Sleep occurs in the middle of a conversion, the
conversion is aborted. The converter does not continue
with a partially completed conversion on exit from
Sleep mode.
Register contents are not affected by the device
entering or leaving Sleep mode.
The A/D module can operate during Sleep mode if the
A/D clock source is set to RC (ADRC = 1). When the
RC clock source is selected, the A/D module waits one
instruction cycle before starting the conversion. This
allows the SLEEP instruction to be executed which
eliminates all digital switching noise from the conver-
sion. (When the conversion sequence is complete, the
DONE bit is set.)
If the A/D interrupt is enabled, the device wakes up
from Sleep. If the A/D interrupt is not enabled, the A/D
module is then turned off, although the ADON bit
remains set.
19.10.2
A/D OPERATION DURING CPU IDLE
MODE
The ADSIDL bit determines if the module stops or
continues on Idle. If ADSIDL = 0, the module continues
operation on assertion of Idle mode. If ADSIDL = 1, the
module stops on Idle.
19.11 Effects of a Reset
A device Reset forces all registers to their Reset state.
This forces the A/D module to be turned off, and any
conversion and sampling sequence is aborted. The val-
ues that are in the ADCBUF registers are not modified.
The A/D Result register contains unknown data after a
Power-on Reset.
19.12 Output Formats
The A/D result is 12 bits wide. The data buffer RAM is
also 12 bits wide. The 12-bit data can be read in one
of four different formats. The FORM<1:0> bits select
the format. Each of the output formats translates to a
16-bit result on the data bus. Write data is always in
right-justified (integer) format.
FIGURE 19-5:
A/D OUTPUT DATA FORMATS
RAM Contents:
d11 d10 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00
Read to Bus:
Signed Fractional
d11 d10 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00
0000
Fractional
d11 d10 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00
0000
Signed Integer
d11 d11 d11 d11 d11 d10 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00
Integer
0000
d11 d10 d09 d08 d07 d06 d05 d04 d03 d02 d01 d00
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