DSPIC33FJ128MC804-H/ML Microchip Technology, DSPIC33FJ128MC804-H/ML Datasheet - Page 195

• Manufacturer Part Number: DSPIC33FJ128MC804-H/ML
• Description: 16-bit DSC, 128KB Flash, Motor, CAN, DMA, 40 MIPS, NanoWatt 44 QFN 8x8x0.9mm TUB
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ128MC804-H/ML

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 9x10b/12b, D/A 6x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 140°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.0
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 Timer1 module has the following unique features
over other timers:
• Can be operated from the low power 32 kHz
• Can be operated in Asynchronous Counter mode
• The external clock input (T1CK) can optionally be
FIGURE 12-1:
© 2011 Microchip Technology Inc.
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
crystal oscillator available on the device
from an external clock source.
synchronized to the internal device clock and the
clock synchronization is performed after the
prescaler.
Note 1: This data sheet summarizes the features
SOSCO/
SOSCI
T1CK
Note 1: Refer to
2: Some registers and associated bits
TIMER1
of
dsPIC33FJ64MCX02/X04
dsPIC33FJ128MCX02/X04
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Section 11. Timers”
(DS70205) of the “dsPIC33F/PIC24H
Family Reference Manual”, which is
available from the Microchip web site
(www.microchip.com).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
the
LPOSCEN
16-BIT TIMER1 MODULE BLOCK DIAGRAM
Section 9.0 “Oscillator Configuration”
dsPIC33FJ32MC302/304,
(1)
F
TCKPS<1:0>
Prescaler
CY
(/n)
TCKPS<1:0>
Prescaler
Sync
Gate
(/n)
family
and
Sync
of
in
TSYNC
Falling Edge
for information on enabling the secondary oscillator.
Detect
1
0
TGATE
The unique features of Timer1 allow it to be used for
Real-Time Clock (RTC) applications. A block diagram
of Timer1 is shown in
The Timer1 module can operate in one of the following
modes:
• Timer mode
• Gated Timer mode
• Synchronous Counter mode
• Asynchronous Counter mode
In Timer and Gated Timer modes, the input clock is
derived from the internal instruction cycle clock (F
In Synchronous and Asynchronous Counter modes,
the input clock is derived from the external clock input
at the T1CK pin.
The Timer modes are determined by the following bits:
• Timer Clock Source Control bit (TCS): T1CON<1>
• Timer Synchronization Control bit (TSYNC):
• Timer Gate Control bit (TGATE): T1CON<6>
Timer control bit setting for different operating modes
are given in the
TABLE 12-1:
Timer
Gated timer
Synchronous
counter
Asynchronous
counter
TCS
T1CON<2>
Mode
10
00
x1
Comparator
Table
TIMER MODE SETTINGS
TMR1
PR1
TCS
Figure
12-1.
0
0
1
1
Reset
Equal
12-1.
TGATE
TGATE
0
1
x
x
DS70291E-page 195
1
0
Set T1IF flag
TSYNC
x
x
1
0
CY
).