DSPIC33FJ32GS406 Datasheet, PDF (213/416 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32GS406/606/608/610 and dsPIC33FJ64GS406/606/608/610
13.0 TIMER2/3/4/5 FEATURES
Note 1: This data sheet summarizes the features
of the dsPIC33FJ32GS406/606/608/610
and dsPIC33FJ64GS406/606/608/610
families of 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) in the “dsPIC33F/PIC24H
Family Reference Manual”, which is avail-
able from the Microchip web site
(www.microchip.com).
2: Some registers and associated bits
described in this section may not be avail-
able on all devices. Refer to Section 4.0
“Memory Organization” in this data
sheet for device-specific register and bit
information.
Timer2 and Timer4 are Type B timers that offer the
following major features:
• A Type B timer can be concatenated with a
Type C timer to form a 32-bit timer
• External clock input (TxCK) is always synchronized
to the internal device clock and the clock
synchronization is performed after the prescaler.
Figure 13-1 shows a block diagram of the Type B timer.
Timer3 and Timer5 are Type C timers that offer the
following major features:
• A Type C timer can be concatenated with a
Type B timer to form a 32-bit timer
• At least one Type C timer has the ability to trigger
an A/D conversion.
• The external clock input (TxCK) is always
synchronized to the internal device clock and the
clock synchronization is performed before the
prescaler
A block diagram of the Type C timer is shown in
Figure 13-2.
Note: Timer3 is not available on all devices.
FIGURE 13-1:
TxCK
TYPE B TIMER BLOCK DIAGRAM (x = 2, 4)
Gate
Sync
FCY
Prescaler
(/n)
TCKPS<1:0>
Prescaler
(/n)
Sync
Falling Edge
Detect
10
00
1 _{Set TxIF Flag}
0
TMRx
Reset
TGATE
x1
Equal
Comparator
TCKPS<1:0>
TGATE
TCS
PRx
FIGURE 13-2:
TxCK
TYPE C TIMER BLOCK DIAGRAM (x = 3, 5)
Gate
Sync
Falling Edge
Detect
1 _{Set TxIF Flag}
FCY
Prescaler
(/n)
Sync
TCKPS<1:0>
Prescaler
(/n)
TCKPS<1:0>
10
00
x1
TGATE
TCS
TMRx
0
Reset
TGATE
Equal ADC SOC Trigger
Comparator
PRx
 2009 Microchip Technology Inc.
Preliminary
DS70591B-page 213