Datasheet

PIC18F2XK20/4XK20
DS41303G-page 126  2010 Microchip Technology Inc.
TABLE 10-4: SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
RB6/KBI2/PGC RB6 0 O DIG LATB<6> data output.
1 I TTL PORTB<6> data input; Programmable weak pull-up.
KBI2 1 I TTL Interrupt-on-pin change.
PGC x I ST Serial execution (ICSP) clock input for ICSP and ICD operation.
(3)
RB7/KBI3/PGD RB7 0 O DIG LATB<7> data output.
1 I TTL PORTB<7> data input; Programmable weak pull-up.
KBI3 1 I TTL Interrupt-on-pin change.
PGD x O DIG Serial execution data output for ICSP and ICD operation.
(3)
x I ST Serial execution data input for ICSP and ICD operation.
(3)
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reset
Values
on page
PORTB RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 62
LATB PORTB Data Latch Register (Read and Write to Data Latch) 62
TRISB PORTB Data Direction Control Register 62
WPUB WPUB7 WPUB6 WPUB5 WPUB4 WPUB3 WPUB2 WPUB1 WPUB0 62
IOCB IOCB7 IOCB6 IOCB5 IOCB4
— — — —62
SLRCON — — — SLRE
(1)
SLRD
(1)
SLRC SLRB SLRA 63
INTCON GIE/GIEH PEIE/GIEL TMR0IE INT0IE RBIE TMR0IF INT0IF RBIF 59
INTCON2 RBPU
INTEDG0 INTEDG1 INTEDG2 — TMR0IP —RBIP59
INTCON3 INT2IP INT1IP
—INT2IEINT1IE— INT2IF INT1IF 59
ANSELH — — — ANS12 ANS11 ANS10 ANS9 ANS8 62
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by PORTB.
Note 1: Not implemented on PIC18F2XK20 devices.
TABLE 10-3: PORTB I/O SUMMARY (CONTINUED)
Pin Function
TRIS
Setting
I/O
I/O
Type
Description
Legend: DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer; ANA = Analog level input/output;
x = Don’t care (TRIS bit does not affect port direction or is overridden for this option).
Note 1: Configuration on POR is determined by the PBADEN Configuration bit. Pins are configured as analog inputs by default
when PBADEN is set and digital inputs when PBADEN is cleared.
2: Alternate assignment for CCP2 when the CCP2MX Configuration bit is ‘0’. Default assignment is RC1.
3: All other pin functions are disabled when ICSP or ICD are enabled.