DSPIC30F4013-20E/P Microchip Technology Inc., DSPIC30F4013-20E/P Datasheet - Page 80
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DSPIC30F4013-20E/P
Manufacturer Part Number
DSPIC30F4013-20E/P
Description
16 BIT MCU/DSP 40LD 20MIPS 48 KB FLASH
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC30F4013-20EP.pdf
(204 pages)
Specifications of DSPIC30F4013-20E/P
A/d Inputs
13-Channels, 12-Bit
Comparators
4
Cpu Speed
30 MIPS
Eeprom Memory
1K Bytes
Input Output
30
Interface
CAN, I2C/SPI/UART, USART
Ios
30
Memory Type
Flash
Number Of Bits
16
Package Type
40-pin PDIP
Programmable Memory
48K Bytes
Ram Size
2K Bytes
Timers
5-16-bit, 2-32-bit
Voltage, Range
2.5-5.5
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
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Part Number:
DSPIC30F4013-20E/PT
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dsPIC30F2011/2012/3012/3013
10.1
The 32-bit timer can be placed in the Gated Time Accu-
mulation mode. This mode allows the internal T
increment the respective timer when the gate input sig-
nal (T2CK pin) is asserted high. Control bit, TGATE
(T2CON<6>), must be set to enable this mode. When
in this mode, Timer2 is the originating clock source.
The TGATE setting is ignored for Timer3. The timer
must be enabled (TON = 1) and the timer clock source
set to internal (TCS = 0).
The falling edge of the external signal terminates the
count operation but does not reset the timer. The user
must reset the timer in order to start counting from zero.
10.2
When a match occurs between the 32-bit timer (TMR3/
TMR2) and the 32-bit combined period register (PR3/
PR2), or between the 16-bit timer TMR3 and the 16-bit
period register PR3, a special ADC trigger event signal
is generated by Timer3.
10.3
The input clock (F
has a prescale option of 1:1, 1:8, 1:64, and 1:256,
selected by control bits, TCKPS<1:0> (T2CON<5:4>
and T3CON<5:4>). For the 32-bit timer operation, the
originating clock source is Timer2. The prescaler oper-
ation for Timer3 is not applicable in this mode. The
prescaler counter is cleared when any of the following
occurs:
• a write to the TMR2/TMR3 register
• a write to the T2CON/T3CON register
• device Reset, such as POR and BOR
However, if the timer is disabled (TON = 0), then the
Timer 2 prescaler cannot be reset since the prescaler
clock is halted.
TMR2/TMR3 is not cleared when T2CON/T3CON is
written.
DS70139D-page 78
Timer Gate Operation
ADC Event Trigger
Timer Prescaler
OSC
/4 or external clock) to the timer
CY
to
10.4
The timer does not operate during CPU Sleep mode
because the internal clocks are disabled.
10.5
The 32-bit timer module can generate an interrupt-on-
period match or on the falling edge of the external gate
signal. When the 32-bit timer count matches the
respective 32-bit period register, or the falling edge of
the external “gate” signal is detected, the T3IF bit
(IFS0<7>) is asserted and an interrupt is generated if
enabled. In this mode, the T3IF interrupt flag is used as
the source of the interrupt. The T3IF bit must be
cleared in software.
Enabling an interrupt is accomplished via the
respective timer interrupt enable bit, T3IE (IEC0<7>).
Timer Operation During Sleep
Mode
Timer Interrupt
© 2006 Microchip Technology Inc.
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