DSPIC33FJ12GP202-I/SS Microchip Technology, DSPIC33FJ12GP202-I/SS Datasheet - Page 125

• Manufacturer Part Number: DSPIC33FJ12GP202-I/SS
• Description: IC DSPIC MCU/DSP 12K 28SSOP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ12GP202-I/SS

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, 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 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SSOP
• 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
• Package: 28SSOP
• Device Core: dsPIC
• Family Name: dsPIC33
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 21
• Interface Type: I2C/SPI/UART
• On-chip Adc: 10-chx12-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

11.0
The Timer2/3 feature has 32-bit timers that can also be
configured as two independent 16-bit timers with
selectable operating modes.
As a 32-bit timer, the Timer2/3 feature permits
operation in three modes:
• Two Independent 16-bit timers (Timer2 and
• Single 32-bit timer (Timer2/3)
• Single 32-bit synchronous counter (Timer2/3)
The Timer2/3 feature also supports:
• Timer gate operation
• Selectable prescaler settings
• Timer operation during Idle and Sleep modes
• Interrupt on a 32-bit Period register match
• Time base for Input Capture and Output Compare
• ADC1 Event Trigger (Timer2/3 only)
Individually, all eight of the 16-bit timers can function as
synchronous timers or counters. They also offer the
features listed above, except for the event trigger. The
operating modes and enabled features are determined
by setting the appropriate bit(s) in the T2CON and
T3CON registers. The T2CON register is shown in
generic form in Register 11-1. The T3CON register is
shown in Register 11-2.
For 32-bit timer/counter operation, Timer2 is the least
significant word, and Timer3 is the most significant
word of the 32-bit timers.
© 2008 Microchip Technology Inc.
Note:
Timer3) with all 16-bit operating modes (except
Asynchronous Counter mode)
modules (Timer2 and Timer3 only)
Note:
TIMER2/3 FEATURE
This data sheet summarizes the features
of the dsPIC33FJ12GP201/202 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 11. Timers”
(DS70205), which is available from the
Microchip website (www.microchip.com).
For 32-bit operation, T3CON control bits
are ignored. Only T2CON control bit is
used for setup and control. Timer2 clock
and gate inputs are used for the 32-bit
timer
generated with the Timer3 interrupt flags.
modules,
but
an
interrupt
Preliminary
To
is
dsPIC33FJ12GP201/202
11.1
To configure the Timer2/3 feature for 32-bit operation:
1.
2.
3.
4.
5.
6.
The timer value at any point is stored in the register
pair TMR3:TMR2. TMR3 always contains the most
significant word of the count, while TMR2 contains the
least significant word.
To configure any of the timers for individual 16-bit
operation:
1.
2.
3.
4.
5.
6.
Set the corresponding T32 control bit.
Select the prescaler ratio for Timer2 using the
TCKPS<1:0> bits.
Set the Clock and Gating modes using the
corresponding TCS and TGATE bits.
Load the timer period value. PR3 contains the
most significant word of the value, while PR2
contains the least significant word.
If interrupts are required, set the interrupt enable
bit, T3IE. Use the priority bits T3IP<2:0> to set
the interrupt priority. While Timer2 controls the
timer, the interrupt appears as a Timer3
interrupt.
Set the corresponding TON bit.
Clear the T32 bit corresponding to that timer.
Select the timer prescaler ratio using the
TCKPS<1:0> bits.
Set the Clock and Gating modes using the TCS
and TGATE bits.
Load the timer period value into the PRx
register.
If interrupts are required, set the interrupt enable
bit, TxIE. Use the priority bits, TxIP<2:0>, to set
the interrupt priority.
Set the TON bit.
32-bit Operation
DS70264C-page 123