Datasheet

 2010-2016 Microchip Technology Inc. DS40001412G-page 169
PIC18(L)F2X/4XK22
13.0 TIMER2/4/6 MODULE
There are three identical 8-bit Timer2-type modules
available. To maintain pre-existing naming conventions,
the Timers are called Timer2, Timer4 and Timer6 (also
Timer2/4/6).
The Timer2/4/6 module incorporates the following
features:
• 8-bit Timer and Period registers (TMRx and PRx,
respectively)
• Readable and writable (both registers)
• Software programmable prescaler (1:1, 1:4, 1:16)
• Software programmable postscaler (1:1 to 1:16)
• Interrupt on TMRx match with PRx, respectively
• Optional use as the shift clock for the MSSPx
modules (Timer2 only)
See Figure 13-1 for a block diagram of Timer2/4/6.
FIGURE 13-1: TIMER2/4/6 BLOCK DIAGRAM
Note: The ‘x’ variable used in this section is
used to designate Timer2, Timer4, or
Timer6. For example, TxCON references
T2CON, T4CON, or T6CON. PRx
references PR2, PR4, or PR6.
Comparator
TMRx
Sets Flag
TMRx
Output
Reset
Postscaler
Prescaler
PRx
2
F
OSC/4
1:1 to 1:16
1:1, 1:4, 1:16
EQ
4
bit TMRxIF
TxOUTPS<3:0>
TxCKPS<1:0>