DSPIC33FJ12MC202-I/SP Microchip Technology, DSPIC33FJ12MC202-I/SP Datasheet - Page 141

• Manufacturer Part Number: DSPIC33FJ12MC202-I/SP
• Description: IC DSPIC MCU/DSP 12K 28DIP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ12MC202-I/SP

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 6x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Core Frequency: 40MHz
• Core Supply Voltage: 2.75V
• Embedded Interface Type: I2C, JTAG, SPI, UART
• No. Of I/o's: 21
• Flash Memory Size: 12KB
• Supply Voltage Range: 3V To 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164337 - MODULE SOCKET FOR PM3 40DIPDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

12.0
The Input Capture module is useful in applications
requiring frequency (period) and pulse measurement.
The dsPIC33FJ12MC201/202 devices support up to
eight input capture channels.
The Input Capture module captures the 16-bit value of
the selected Time Base register when an event occurs
at the ICx pin. The events that cause a capture event
are listed below in three categories:
1.
FIGURE 12-1:
© 2008 Microchip Technology Inc.
Note:
- Capture timer value on every falling edge of
- Capture timer value on every rising edge of
Note: An ‘x’ in a signal, register or bit name denotes the number of the capture channel.
ICx Pin
Simple Capture Event modes:
input at ICx pin
input at ICx pin
INPUT CAPTURE
This data sheet summarizes the features
of the dsPIC33FJ12MC201/202 family of
devices. It is not intended to be a
comprehensive reference source.
complement the information in this data
sheet, refer to the dsPIC33F Family
Reference Manual, “Section 12. Input
Capture” (DS70198), which is available
from
(www.microchip.com).
Prescaler
(1, 4, 16)
Counter
3
the
INPUT CAPTURE BLOCK DIAGRAM
System Bus
ICxCON
ICM<2:0> (ICxCON<2:0>)
ICOV, ICBNE (ICxCON<4:3>)
Microchip
Mode Select
Edge Detection Logic
Clock Synchronizer
ICxI<1:0>
and
website
Preliminary
To
dsPIC33FJ12MC201/202
(in IFSn Register)
Set Flag ICxIF
Interrupt
Logic
2.
3.
Each Input Capture channel can select one of two
16-bit timers (Timer2 or Timer3) for the time base.
The selected timer can use either an internal or
external clock.
Other operational features include:
• Device wake-up from capture pin during CPU
• Interrupt on Input Capture event
• 4-word FIFO buffer for capture values
• Use of Input Capture to provide additional
- Capture timer value on every 4th rising edge
- Capture timer value on every 16th rising
Sleep and Idle modes
- Interrupt optionally generated after 1, 2, 3, or
sources of external interrupts
Capture timer value on every edge (rising and
falling)
Prescaler Capture Event modes:
of input at ICx pin
edge of input at ICx pin
4 buffer locations are filled
Logic
FIFO
R/W
From 16-bit Timers
TMR2 TMR3
1
ICxBUF
16
0
DS70265C-page 139
16
ICTMR
(ICxCON<7>)