PIC17C7XX_13 Datasheet, PDF (76/306 Pages) Microchip Technology – High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D

PIC17C7XX
FIGURE 10-7:
BLOCK DIAGRAM OF RB6 PORT PIN
Weak
Pull-up
Match Signal
from other
port pins
Peripheral Data In
RBPU ^(PORTA<7>)
RBIF
DQ
EN
OE
P
0
1
N
Port
Data
Q
D
Q CK
Note: I/O pin has protection diodes to Vdd and Vss.
FIGURE 10-8:
BLOCK DIAGRAM OF RB7 PORT PIN
Weak
Pull-up
D
Q
CK
Data Bus
RD_DDRB (Q2)
RD_PORTB (Q2)
WR_DDRB (Q4)
WR_PORTB (Q4)
SPI Output
SPI Output Enable
Match Signal
from other
port pins
Peripheral Data In
RBPU ^(PORTA<7>)
RBIF
DQ
EN
OE
P
0
1
N
Note: I/O pin has protection diodes to VDD and VSS.
DS30289C-page 76
Port
Data
Q
D
Q CK
D
Q
CK
Data Bus
RD_DDRB (Q2)
RD_PORTB (Q2)
WR_DDRB (Q4)
SS Output Disable
WR_PORTB (Q4)
SPI Output
SPI Output Enable
 1998-2013 Microchip Technology Inc.