PIC16LF1508 Datasheet, PDF (288/384 Pages) Microchip Technology – 20-Pin Flash, 8-Bit Microcontrollers with nanoWatt XLP Technology

FIGURE 25-1:
NUMERICALLY CONTROLLED OSCILLATOR (NCOx) MODULE SIMPLIFIED BLOCK DIAGRAM
Increment
16
(1)
Buffer
16
Interrupt event
Set NCOxIF flag
NCO1CLK
LC1OUT
FOSC
HFINTOSC
11
10
01
00 _NxEN
2
NxCKS<2:0>

20
Accumulator
20
Overflow
NCOx Clock
D
Q
Q
Overflow _S
Q
R
Q
0
1
NxPFM
NxPOL
NCOxOUT _{To CLC, CWG}
NxOE
TRIS Control
NCOx
NCOx Clock
3
NxPWS<2:0>
Reset
Ripple Counter
Note 1: The increment registers are double-buffered to allow for value changes to be made without first disabling the NCOx
module. They are shown here for reference. The buffers are not user-accessible.