PIC16F946 Datasheet, PDF (37/274 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

PIC16F946
3.1.1.7 RA6/OSC2/CLKO/T1OSO
Figure 3-7 shows the diagram for this pin. The
RA6/OSC2/CLKO/T1OSO pin is configurable to
function as one of the following:
• a general purpose I/O
• a crystal/resonator connection
• a clock output
• a TMR1 oscillator connection
FIGURE 3-7:
BLOCK DIAGRAM OF RA6/OSC2/CLKO/T1OSO
Data Bus
WR PORTA
WR TRISA
FOSC = 00x, 010
or T1OSCEN
FOSC = 1x1
CLKO (FOSC/4)
1
D
Q
0
CK Q
Data Latch
D
Q
CK Q
TRIS Latch
RD TRISA
From OSC1 Oscillator
Circuit
VDD
FOSC = 00x, 010
or T1OSCEN
TTL
Input Buffer
RA6/OSC2/
CLKO/T1OSO
Pin
VSS
RD PORTA
© 2005 Microchip Technology Inc.
Preliminary
DS41265A-page 35