Microchip Technology MA300015 Data Sheet
© 2011 Microchip Technology Inc.
DS70150E-page 77
dsPIC30F6010A/6015
11.0
TIMER4/5 MODULE
This section describes the second 32-bit General
Purpose (GP) Timer module (Timer4/5) and associated
operational modes.
Purpose (GP) Timer module (Timer4/5) and associated
operational modes.
depicts the simplified
block diagram of the 32-bit Timer4/5 Module.
show Timer4/5 configured
as two independent 16-bit timers, Timer4 and Timer5,
respectively.
respectively.
The Timer4/5 module is similar in operation to the
Timer2/3 module. However, there are some
differences, which are listed below:
Timer2/3 module. However, there are some
differences, which are listed below:
• The Timer4/5 module does not support the ADC
Event Trigger feature
• Timer4/5 cannot be utilized by other peripheral
modules such as Input Capture and Output Compare
The operating modes of the Timer4/5 module are
determined by setting the appropriate bit(s) in the 16-bit
T4CON and T5CON SFRs.
determined by setting the appropriate bit(s) in the 16-bit
T4CON and T5CON SFRs.
For 32-bit timer/counter operation, Timer4 is the lsw
and Timer5 is the msw of the 32-bit timer.
and Timer5 is the msw of the 32-bit timer.
FIGURE 11-1:
32-BIT TIMER4/5 BLOCK DIAGRAM
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 gen-
eral device functionality, refer to the
“dsPIC30F Family Reference Manual”
(DS70046).
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 gen-
eral device functionality, refer to the
“dsPIC30F Family Reference Manual”
(DS70046).
Note:
Timer4 is a Type B timer and Timer5 is a
Type C timer. Please refer to the appropri-
ate timer type in
Type C timer. Please refer to the appropri-
ate timer type in
.
Note:
For 32-bit timer operation, T5CON control
bits are ignored. Only T4CON control bits
are used for setup and control. Timer4
clock and gate inputs are utilized for the
32-bit timer module, but an interrupt is
generated with the Timer5 Interrupt Flag
(T5IF) and the interrupt is enabled with the
Timer5 Interrupt Enable bit (T5IE).
bits are ignored. Only T4CON control bits
are used for setup and control. Timer4
clock and gate inputs are utilized for the
32-bit timer module, but an interrupt is
generated with the Timer5 Interrupt Flag
(T5IF) and the interrupt is enabled with the
Timer5 Interrupt Enable bit (T5IE).
TMR5
TMR4
T5IF
Equal
Comparator x 32
PR5 PR4
Reset
LSB
MSB
Event Flag
Note:
Timer Configuration bit T45, T4CON(<3>) must be set to ‘
1
’ for a 32-bit timer/counter operation. All
control bits are respective to the T4CON register.
Data Bus<15:0>
TMR5HLD
Read TMR4
Write TMR4
16
16
16
Q
Q
D
CK
TGATE(T4CON<6>)
(T4CON<6>)
TGATE
0
1
TON
TCKPS<1:0>
Prescaler
1, 8, 64, 256
2
T
CY
TCS
1 x
0 1
TG
A
T
E
0
0
Gate
T4CK
Sync
Sync