DSPIC30F5011-30I/PT Microchip Technology Inc., DSPIC30F5011-30I/PT Datasheet - Page 68
DSPIC30F5011-30I/PT
Manufacturer Part Number
DSPIC30F5011-30I/PT
Description
16 BIT MCU/DSP 64LD 30MIPS 66 KB FLASH
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC30F5011-30IPT.pdf
(224 pages)
Specifications of DSPIC30F5011-30I/PT
A/d Inputs
16-Channels, 12-Bit
Cpu Speed
30 MIPS
Eeprom Memory
1K Bytes
Input Output
52
Interface
CAN, I2C, SPI, UART/USART
Ios
52
Memory Type
Flash
Number Of Bits
16
Package Type
64-pin TQFP
Programmable Memory
66K Bytes
Ram Size
4K Bytes
Timers
5-16-bit, 2-32-bit
Voltage, Range
2.5-5.5
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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dsPIC30F5011/5013
9.1
The 16-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 (T1CK pin) is asserted high. Control bit TGATE
(T1CON<6>) must be set to enable this mode. The
timer must be enabled (TON = 1) and the timer clock
source set to internal (TCS = 0).
When the CPU goes into the Idle mode, the timer will
stop incrementing unless TSIDL = 0. If TSIDL = 1, the
timer will resume the incrementing sequence upon
termination of the CPU Idle mode.
9.2
The input clock (F
Timer has a prescale option of 1:1, 1:8, 1:64 and 1:256,
selected by control bits TCKPS<1:0> (T1CON<5:4>).
The prescaler counter is cleared when any of the
following occurs:
• a write to the TMR1 register
• a write to the T1CON register
• device Reset, such as POR and BOR
However, if the timer is disabled (TON = 0), then the
timer prescaler cannot be reset since the prescaler
clock is halted.
TMR1 is not cleared when T1CON is written. It is
cleared by writing to the TMR1 register.
9.3
During CPU Sleep mode, the timer will operate if:
• The timer module is enabled (TON = 1) and
• The timer clock source is selected as external
• The TSYNC bit (T1CON<2>) is asserted to a logic
When all three conditions are true, the timer will con-
tinue to count up to the Period register and be reset to
0x0000.
When a match between the timer and the Period regis-
ter occurs, an interrupt can be generated if the
respective timer interrupt enable bit is asserted.
DS70116F-page 66
(TCS = 1) and
‘0’ which defines the external clock source as
asynchronous.
Timer Gate Operation
Timer Prescaler
Timer Operation During Sleep
Mode
OSC
/4 or external clock) to the 16-bit
CY
to
9.4
The 16-bit timer has the ability to generate an interrupt on
period match. When the timer count matches the Period
register, the T1IF bit is asserted and an interrupt will be
generated if enabled. The T1IF bit must be cleared in
software. The timer interrupt flag, T1IF, is located in the
IFS0 Control register in the interrupt controller.
When the Gated Time Accumulation mode is enabled,
an interrupt will also be generated on the falling edge of
the gate signal (at the end of the accumulation cycle).
Enabling an interrupt is accomplished via the respec-
tive timer interrupt enable bit, T1IE. The timer interrupt
enable bit is located in the IEC0 Control register in the
interrupt controller.
9.5
Timer1, when operating in Real-Time Clock (RTC)
mode, provides time of day and event time-stamping
capabilities. Key operational features of the RTC are:
• Operation from 32 kHz LP oscillator
• 8-bit prescaler
• Low power
• Real-Time clock interrupts
These operating modes are determined by setting the
appropriate bit(s) in the T1CON Control register.
FIGURE 9-2:
C1 = C2 = 18 pF; R = 100K
C1
C2
Timer Interrupt
Real-Time Clock
32.768 kHz
XTAL
R
RECOMMENDED
COMPONENTS FOR
TIMER1 LP OSCILLATOR
RTC
© 2006 Microchip Technology Inc.
SOSCI
SOSCO
dsPIC30FXXXX
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