Datasheet

 1998-2013 Microchip Technology Inc. DS40182D-page 25
PIC16CE62X
TABLE 5-1: PORTA FUNCTIONS
TABLE 5-2: SUMMARY OF REGISTERS ASSOCIATED WITH PORTA
Name Bit #
Buffer
Type
Function
RA0/AN0 bit0 ST Input/output or comparator input
RA1/AN1 bit1 ST Input/output or comparator input
RA2/AN2/V
REF bit2 ST Input/output or comparator input or VREF output
RA3/AN3 bit3 ST Input/output or comparator input/output
RA4/T0CKI bit4 ST Input/output or external clock input for TMR0 or comparator output.
Output is open drain type.
Legend: ST = Schmitt Trigger input
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on:
POR
Value on
All Other
Resets
05h PORTA
— — — RA4 RA3 RA2 RA1 RA0 ---x 0000 ---u 0000
85h TRISA
— — — TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 ---1 1111 ---1 1111
1Fh CMCON
C2OUT C1OUT — — CIS CM2 CM1 CM0 00-- 0000 00-- 0000
9Fh VRCON VREN VROE
VRR — VR3 VR2 VR1 VR0 000- 0000 000- 0000
Legend: — = Unimplemented locations, read as ‘0’, x = unknown, u = unchanged
Note: Shaded bits are not used by PORTA.