DSPIC30F2023-30I/PT Microchip Technology Inc., DSPIC30F2023-30I/PT Datasheet - Page 89
DSPIC30F2023-30I/PT
Manufacturer Part Number
DSPIC30F2023-30I/PT
Description
DSP, 16-Bit, 12KB Flash, 512 RAM, 35 I/O, TQFP-44
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC30F2023-30IPT.pdf
(286 pages)
Specifications of DSPIC30F2023-30I/PT
A/d Inputs
12-Channels, 10-Bit
Comparators
4
Cpu Speed
30 MIPS
Eeprom Memory
0 Bytes
Input Output
35
Interface
I2C/SPI/UART
Ios
35
Memory Type
Flash
Number Of Bits
16
Package Type
44-pin TQFP
Programmable Memory
12K Bytes
Ram Size
512 Bytes
Timers
3-16-bit, 1-32-bit
Voltage, Range
3-5.5
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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8.0
This section describes the 16-bit General Purpose
Timer1 module and associated operational modes.
Figure 8-1 depicts the simplified block diagram of the
16-bit Timer1 Module.
The following sections provide a detailed description of
the operational modes of the timers, including setup
and control registers along with associated block
diagrams.
The Timer1 module is a 16-bit timer which can serve as
the time counter for the real-time clock, or operate as a
free running interval timer/counter. The 16-bit timer has
the following modes:
• 16-bit Timer
• 16-bit Synchronous Counter
• 16-bit Asynchronous Counter
Further, the following operational characteristics are
supported:
• Timer gate operation
• Selectable prescaler settings
• Timer operation during CPU Idle and Sleep
• Interrupt on 16-bit period register match or falling
These operating modes are determined by setting the
appropriate bit(s) in the 16-bit SFR, T1CON. Figure 8-1
presents a block diagram of the 16-bit timer module.
© 2006 Microchip Technology Inc.
Note: This data sheet summarizes features of this group
of dsPIC30F devices and is not intended to be a complete
reference source. For more information on the CPU,
peripherals, register descriptions and general device
functionality, refer to the “dsPIC30F Family Reference
Manual” (DS70046).
Note:
modes
edge of external gate signal
TIMER1 MODULE
Timer1 is a ‘Type A’ timer. Please refer to
the specifications for a Type A timer in
Section 21.0 “Electrical Characteris-
tics” of this document.
Preliminary
16-bit Timer Mode: In the 16-bit Timer mode, the timer
increments on every instruction cycle up to a match
value, preloaded into the period register PR1, then
resets to 0 and continues to count.
When the CPU goes into the Idle mode, the timer will
stop incrementing, unless the TSIDL (T1CON<13>)
bit = 0. If TSIDL = 1, the timer module logic will resume
the incrementing sequence upon termination of the
CPU Idle mode.
16-bit Synchronous Counter Mode: In the 16-bit
Synchronous Counter mode, the timer increments on
the rising edge of the applied external clock signal,
which is synchronized with the internal phase clocks.
The timer counts up to a match value preloaded in PR1,
then resets to 0 and continues.
When the CPU goes into the Idle mode, the timer will
stop incrementing, unless the respective TSIDL bit = 0.
If TSIDL = 1, the timer module logic will resume the
incrementing sequence upon termination of the CPU
Idle mode.
16-bit Asynchronous Counter Mode: In the 16-bit
Asynchronous Counter mode, the timer increments on
every rising edge of the applied external clock signal.
The timer counts up to a match value preloaded in PR1,
then resets to ‘0’ and continues.
When the timer is configured for the Asynchronous mode
of operation and the CPU goes into the Idle mode, the
timer will stop incrementing if TSIDL = 1.
dsPIC30F1010/202X
DS70178C-page 87
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