参数资料
型号: DSPIC30F5015-30I/PT
厂商: Microchip Technology
文件页数: 111/129页
文件大小: 0K
描述: IC DSPIC MCU/DSP 66K 64TQFP
产品培训模块: dsPIC30F Quadrature Encoder Interface
Serial Communications using dsPIC30F CAN
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: CAN,I²C,SPI,UART/USART
外围设备: 高级欠压探测/复位,电机控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 52
程序存储器容量: 66KB(22K 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 16x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 托盘
产品目录页面: 651 (CN2011-ZH PDF)
配用: XLT64PT5-ND - SOCKET TRAN ICE 64MQFP/TQFP
AC164319-ND - MODULE SKT MPLAB PM3 64TQFP
DV164005-ND - KIT ICD2 SIMPLE SUIT W/USB CABLE
其它名称: DSPIC30F501530IPT
dsPIC30F5015/5016
DS70149D-page 82
2008 Microchip Technology Inc.
12.1.2
CAPTURE BUFFER OPERATION
Each capture channel has an associated FIFO buffer,
which is four 16-bit words deep. There are two status
flags, which provide status on the FIFO buffer:
ICBFNE – Input Capture Buffer Not Empty
ICOV – Input Capture Overflow
The ICBFNE will be set on the first input capture event
and remain set until all capture events have been read
from the FIFO. As each word is read from the FIFO, the
remaining words are advanced by one position within
the buffer.
In the event that the FIFO is full with four capture
events and a fifth capture event occurs prior to a read
of the FIFO, an overflow condition will occur and the
ICOV bit will be set to a logic ‘1’. The fifth capture event
is lost and is not stored in the FIFO. No additional
events will be captured till all four events have been
read from the buffer.
If a FIFO read is performed after the last read and no
new capture event has been received, the read will
yield indeterminate results.
12.1.3
TIMER2 AND TIMER3 SELECTION
MODE
Each capture channel can select between one of two
timers for the time base, Timer2 or Timer3.
Selection of the timer resource is accomplished
through SFR bit ICTMR (ICxCON<7>). Timer3 is the
default timer resource available for the input capture
module.
12.1.4
HALL SENSOR MODE
When the input capture module is set for capture on
every edge, rising and falling, ICM<2:0> = 001, the
following operations are performed by the input
capture logic:
The input capture interrupt flag is set on every
edge, rising and falling
The interrupt on Capture mode setting bits,
ICI<1:0>, is ignored, since every capture
generates an interrupt
A capture overflow condition is not generated in
this mode
12.2
Input Capture Operation During
Sleep and Idle Modes
An input capture event will generate a device wake-up
or interrupt, if enabled, if the device is in CPU Idle or
Sleep mode.
Independent of the timer being enabled, the input
capture module will wake-up from the CPU Sleep or
Idle mode when a capture event occurs, if
ICM<2:0> = 111 and the interrupt enable bit is
asserted. The same wake-up can generate an
interrupt if the conditions for processing the interrupt
have been satisfied. The wake-up feature is useful as
a method of adding extra external pin interrupts.
12.2.1
INPUT CAPTURE IN CPU SLEEP
MODE
CPU Sleep mode allows input capture module
opera tion with reduced functionality. In the CPU Sleep
mode, the ICI<1:0> bits are not applicable, and the
input capture module can only function as an external
interrupt source.
The capture module must be configured for interrupt
only on the rising edge (ICM<2:0> = 111) in order for
the input capture module to be used while the device
is in Sleep mode. The prescale settings of 4:1 or 16:1
are not applicable in this mode.
12.2.2
INPUT CAPTURE IN CPU IDLE
MODE
CPU Idle mode allows input capture module operation
with full functionality. In the CPU Idle mode, the Interrupt
mode selected by the ICI<1:0> bits is applicable, as well
as the 4:1 and 16:1 capture prescale settings, which are
defined by control bits ICM<2:0>. This mode requires
the selected timer to be enabled. Moreover, the ICSIDL
bit must be asserted to a logic ‘0’.
If
the
input
capture
module
is
defined
as
ICM<2:0> = 111 in CPU Idle mode, the input capture
pin will serve only as an external interrupt pin.
12.3
Input Capture Interrupts
The input capture channels have the ability to generate
an interrupt, based upon the selected number of
capture events. The selection number is set by control
bits ICI<1:0> (ICxCON<6:5>).
Each channel provides an interrupt flag (ICxIF) bit. The
respective capture channel interrupt flag is located in
the corresponding IFSx Status register.
Enabling an interrupt is accomplished via the
respective Capture Channel Interrupt Enable (ICxIE)
bit. The Capture Interrupt Enable bit is located in the
corresponding IEC Control register.
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